Female reproductive system of fasciola hepatica
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The female reproductive system of Fasciola hepatica consists of an ovary, oviduct, uterus, vitelline glands, Mehlis' glands, and Laurer's canal. The ovary is single and highly branched, opening into the oviduct. The oviduct connects to the median vitelline duct, which joins the uterus containing fertilized eggs. Numerous vitelline glands produce yolk and shell material for the eggs, emptying into longitudinal and transverse vitelline ducts. Mehlis' glands secrete fluids to lubricate the eggs' passage and activate sperm. Laurer's canal temporarily opens dorsally during breeding to serve as a cop
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Male reproductive system of fasciola hepatica
The male reproductive system of Fasciola hepatica consists of well-developed complex organs including testes, vasa deferentia, seminal vesicle, ejaculatory duct, cirrus or penis, prostate glands, and genital atrium. The testes produce spermatozoa which pass through the vasa deferentia into the seminal vesicle for storage. The seminal vesicle leads to the ejaculatory duct which opens into the cirrus or penis. Prostate glands surrounding the ejaculatory duct secrete fluids aiding sperm movement. A common genital atrium contains openings for the male and female systems and allows the cirrus to erect during copulation.
Phylum Porifera - Sycon
The invertebrates, or invertebrates, are animals that do not contain bony structures, such as the cranium and vertebrae. The simplest of all the invertebrates are the Parazoans, which include only the phylum Porifera: the sponges.
Parazoans (“beside animals”) do not display tissue-level organization, although they do have specialized cells that perform specific functions. Sponge larvae are able to swim; however, adults are non-motile and spend their life attached to a substratum.
Since water is vital to sponges for excretion, feeding, and gas exchange, their body structure facilitates the movement of water through the sponge. Structures such as canals, chambers, and cavities enable water to move through the sponge to nearly all body cells.
Canal system in porifera-different type of canal system
The document describes the internal structure and canal system of sponges. It discusses the key components of the canal system including incurrent canals, radial canals, and choanocytes. It describes the four main types of canal systems: Ascon, Sycon, Leucon, and Rhagon. The Ascon type has a simple structure with incurrent pores leading directly to the spongocoel. The Sycon type features incurrent and radial canals. The Leucon type has further folded chambers. The canal systems serve functions like nutrient acquisition, gas exchange, and waste removal for the sponge.
Fasciola hepatic.- complete life cycle, Different larva stages
The document summarizes the life cycle of the Fasciola hepatica parasite. It begins with copulation and fertilization within the bile ducts of sheep. Eggs are laid and pass through sheep feces, developing into miracidium larvae if conditions are suitable. Miracidium infect certain snail species, developing into sporocysts then redia larvae within the snail. Redia produce cercaria larvae, which exit the snail and shed their tails as metacercaria cysts. If a sheep ingests metacercaria, the parasites excyst in the liver to mature into adult flukes, repeating the life cycle. The life cycle involves several stages within the sheep and snail hosts.
Porifera phylum
Porifera is a phylum of primitive invertebrate animals comprising the sponges and having a cellular grade of construction without true tissue or organ formation but with the body permeated by canals and chambers through which a current of water flows and passes in its course through one or more cavities lined with choanocytes.
star fish.pptx
The document summarizes the habitat, external structures, body wall, coelom, digestive system, and water vascular system of the starfish Asterias. Some key points:
- Asterias is a marine echinoderm that lives on rocky sea bottoms and feeds on bivalves. It has a central disc and 5 tapering arms.
- Its body is covered in calcareous plates and has ambulacral grooves lined with spines on the oral surface. The aboral surface contains dermal pores and papulae.
- Its digestive system includes a mouth, esophagus, stomach divided into cardiac and pyloric sections, intestine, anus, and digestive g
Coelenterates- The Obelia
Obelia is a colonial marine cnidarian that exists in both a sessile polyp stage and a free-swimming medusa stage. It has a branching structure made of hydrocaulus and hydrorhiza that support gastrozooids for feeding and gonozooids for asexual reproduction. Gonozooids bud numerous small medusae that detach and transition Obelia to its sexual medusa phase, where it reproduces sexually to complete its life cycle.
Coelenterates - classification and gen characters
Coelenterates are diploblastic animals with a radial or biradial symmetry and two tissue layers. They are divided into three phyla - Hydrozoa, Scyphozoa, and Anthozoa - based on their polyp and medusa forms. Hydrozoans have both polyp and medusa stages in their life cycle while scyphozoans are medusa-dominant and anthozoans are polyp-dominant. Cnidarians have stinging cells called nematocysts and a gastrovascular cavity that functions in digestion, circulation, and osmoregulation. They reproduce both sexually and asexually.
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Male reproductive system of fasciola hepatica
The male reproductive system of Fasciola hepatica consists of well-developed complex organs including testes, vasa deferentia, seminal vesicle, ejaculatory duct, cirrus or penis, prostate glands, and genital atrium. The testes produce spermatozoa which pass through the vasa deferentia into the seminal vesicle for storage. The seminal vesicle leads to the ejaculatory duct which opens into the cirrus or penis. Prostate glands surrounding the ejaculatory duct secrete fluids aiding sperm movement. A common genital atrium contains openings for the male and female systems and allows the cirrus to erect during copulation.
Phylum Porifera - Sycon
The invertebrates, or invertebrates, are animals that do not contain bony structures, such as the cranium and vertebrae. The simplest of all the invertebrates are the Parazoans, which include only the phylum Porifera: the sponges.
Parazoans (“beside animals”) do not display tissue-level organization, although they do have specialized cells that perform specific functions. Sponge larvae are able to swim; however, adults are non-motile and spend their life attached to a substratum.
Since water is vital to sponges for excretion, feeding, and gas exchange, their body structure facilitates the movement of water through the sponge. Structures such as canals, chambers, and cavities enable water to move through the sponge to nearly all body cells.
Canal system in porifera-different type of canal system
The document describes the internal structure and canal system of sponges. It discusses the key components of the canal system including incurrent canals, radial canals, and choanocytes. It describes the four main types of canal systems: Ascon, Sycon, Leucon, and Rhagon. The Ascon type has a simple structure with incurrent pores leading directly to the spongocoel. The Sycon type features incurrent and radial canals. The Leucon type has further folded chambers. The canal systems serve functions like nutrient acquisition, gas exchange, and waste removal for the sponge.
Fasciola hepatic.- complete life cycle, Different larva stages
The document summarizes the life cycle of the Fasciola hepatica parasite. It begins with copulation and fertilization within the bile ducts of sheep. Eggs are laid and pass through sheep feces, developing into miracidium larvae if conditions are suitable. Miracidium infect certain snail species, developing into sporocysts then redia larvae within the snail. Redia produce cercaria larvae, which exit the snail and shed their tails as metacercaria cysts. If a sheep ingests metacercaria, the parasites excyst in the liver to mature into adult flukes, repeating the life cycle. The life cycle involves several stages within the sheep and snail hosts.
Porifera phylum
Porifera is a phylum of primitive invertebrate animals comprising the sponges and having a cellular grade of construction without true tissue or organ formation but with the body permeated by canals and chambers through which a current of water flows and passes in its course through one or more cavities lined with choanocytes.
star fish.pptx
The document summarizes the habitat, external structures, body wall, coelom, digestive system, and water vascular system of the starfish Asterias. Some key points:
- Asterias is a marine echinoderm that lives on rocky sea bottoms and feeds on bivalves. It has a central disc and 5 tapering arms.
- Its body is covered in calcareous plates and has ambulacral grooves lined with spines on the oral surface. The aboral surface contains dermal pores and papulae.
- Its digestive system includes a mouth, esophagus, stomach divided into cardiac and pyloric sections, intestine, anus, and digestive g
Coelenterates- The Obelia
Obelia is a colonial marine cnidarian that exists in both a sessile polyp stage and a free-swimming medusa stage. It has a branching structure made of hydrocaulus and hydrorhiza that support gastrozooids for feeding and gonozooids for asexual reproduction. Gonozooids bud numerous small medusae that detach and transition Obelia to its sexual medusa phase, where it reproduces sexually to complete its life cycle.
Coelenterates - classification and gen characters
Coelenterates are diploblastic animals with a radial or biradial symmetry and two tissue layers. They are divided into three phyla - Hydrozoa, Scyphozoa, and Anthozoa - based on their polyp and medusa forms. Hydrozoans have both polyp and medusa stages in their life cycle while scyphozoans are medusa-dominant and anthozoans are polyp-dominant. Cnidarians have stinging cells called nematocysts and a gastrovascular cavity that functions in digestion, circulation, and osmoregulation. They reproduce both sexually and asexually.
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2. Key external features include a segmented body, appendages, and a chitinous exoskeleton. The digestive system contains a stomach, hepatopancreas, intestine and anus.
3. Respiration occurs through gills and the circulatory system is open with a heart, arteries and blood sinuses. The excretory system contains antennary glands and a renal sac for osmoregulation.
LIFE CYCLE OF FASCIOLA HEPATICA.pptx
Fasciola hepatica, commonly known as the sheep liver fluke, is a parasitic flatworm that infects the livers of sheep and other mammals. It has a complex life cycle involving two host species - a primary host such as sheep and a secondary intermediate host, which is a freshwater snail. Within the host, it progresses through several larval stages including miracidium, sporocyst, redia, cercaria and metacercaria before developing into an adult. The adult lives in the bile ducts of the liver where it reproduces sexually. Its eggs are released in feces to continue the life cycle. F. hepatica infection causes disease and economic losses in livestock.
Detailed study of pila
This document provides details about the sensory organs, reproductive system, and development of the freshwater snail Pila. It describes the osphradium, statocyst, eyes, and tentacles as sensory organs. The reproductive systems of both male and female Pila are examined, including testes, vas deferens, penis, and ovaries. Fertilization occurs internally in the uterus, and eggs are laid in masses. Larval development involves a trochophore stage followed by a veliger larva.
Respiratory system of pila
Pila is an amphibian that can perform both branchial and pulmonary respiration. When in water, it breathes through gills called ctenidia located in the branchial chamber. On land, it breathes through a pulmonary sac located in the pulmonary chamber. The pulmonary sac allows for gas exchange between air and blood. Pila can also respire underwater using a respiratory tube formed by its nuchal lobe to bring air into the pulmonary sac. Its osphradium organ helps detect chemicals in the water.
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The document summarizes the external features, anatomy, and reproductive system of the apple snail (Pila globosa). Some key points:
- The shell is coiled in a right-handed spiral and contains several whorls. It has an operculum and varies in color.
- The body consists of a head, foot, and visceral mass contained within the shell whorls. It has two pairs of tentacles and eyes on stalks.
- Reproduction is dioecious. The male has a penis, vas deferens and testis. The female has an ovary. Fertilization is internal.
Canal system
The canal system in sponges helps with food acquisition, gas exchange, and waste removal. It is composed of incurrent canals that bring water into the body through openings called ostia. The water then flows into radial canals lined with collar cells that have flagella to capture food particles. These radial canals open into a central cavity called the spongocoel. Water then exits through openings called oscula. There are several types of canal systems that vary in complexity, but all involve water entering through ostia, flowing through flagellated chambers that capture food, and exiting through oscula.
canal system
1) Sponges have a canal system inside their bodies to allow water flow through openings called ostia and pores.
2) There are three main types of canal systems - ascon, sycon, and leucon. The ascon system has a single central cavity called a spongocoel. The sycon system has incurrent and radial canals. The leucon system has more complex branching of flagellated chambers and canals.
3) Water flow through the canal system is driven by beating flagella of collar cells called choanocytes. It brings in food and oxygen and removes waste from the sponge.
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Mammalian Circulatory system
The mammalian circulatory system consists of a four-chambered heart that pumps blood through the body. The heart has four valves that ensure blood flows in one direction. It pumps deoxygenated blood to the lungs and oxygenated blood to the body in a continuous closed circuit. The cardiac cycle involves repeated ventricular contraction and relaxation. Contraction is driven by electrical signals that cause the muscles to depolarize and repolarize. This pumps blood out of the heart and allows it to refill between beats.
Ammoceate larva
The document discusses the evolutionary significance of the Ammocoete larva stage of lampreys. Some key points:
1. The Ammocoete larva exhibits many primitive chordate properties and some early vertebrate traits like a dorsal nerve chord.
2. The larva lives filter feeding in freshwater for 3-7 years, looking similar to lancelets, before undergoing dramatic changes to transform into the parasitic adult form and transition to saltwater.
3. The larval stage is important as it represents one of the most primitive and generalized vertebrate forms, showing traits intermediate between lancelets and vertebrates.
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Fasciola hepatica, commonly known as the liver fluke, is a cosmopolitan parasite that infects the livers of sheep and cattle. It has a leaf-like body that is pinkish in color. It uses its oral sucker and ventral sucker to feed on bile and tissue in the liver. It has an incomplete digestive system without an anus. It excretes waste through flame cells and a longitudinal excretory canal. Its nervous system includes a brain, ganglia, and nerve cords that innervate its organs.
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Development of Kidney In Vertebrates
The document summarizes the development of the kidney in vertebrates. It discusses the three main stages of kidney development: (1) the pronephros, which is an initial kidney that forms but then degenerates; (2) the mesonephros, which briefly functions as a kidney in some species; and (3) the metanephros, which develops from the intermediate mesoderm and ureteric buds and forms the permanent kidney through reciprocal interactions between epithelial and mesenchymal tissues. The ureteric buds branch and induce surrounding mesenchyme to form nephrons, while the mesenchyme causes further branching of the ureteric ducts, resulting in the
Comparision of brain in vertebrates
The vertebrate brain
The vertebrate brain is the main part of the central nervous system. The brain and the spinal cord make up the central nervous system,
In most of the vertebrates the brain is at the front, in the head. It is protected by the skull and close to the main sense organs.
Brains are extremely complex and the part of human and animal body. The brain controls the other organs of the body, either by activating muscles or by causing secretion of chemicals such as hormones and neurotransmitters.
Muscular action allows rapid and coordinated responses to changes in the environment.
The brain of an adult human weights about 1300–1400 grams .
In vertebrates, the spinal cord by itself can cause reflex responses as well as simple movement such as swimming or walking. However, sophisticated control of behaviour requires a centralized brain.
The structure of all vertebrate brains is basically the same.
At the same time, during the course of evolution, the vertebrate brain has undergone changes, and become more effective.
In so-called 'lower' animals, most or all of the brain structure is inherited, and therefore their behaviour is mostly instinctive.
In mammals, and especially in man, the brain is developed further during life by learning. This has the benefit of helping them fit better into their environment. The capacity to learn is seen best in the cerebral cortex.
Three principles
The brain and nervous system is essentially a system which makes connections. It has input from sense organs and output to muscles. It is connected in several ways with the endocrine system, which makes hormones, and the digestive system and sex system. Hormones work slowly, so those changes are gradual.
The brain is a kind of department store. It has, all inter-connected, departments which do different things. They all help each other gather senses.
Much of what the body does is not conscious. Basically, much of the body runs on automatic (breathing, heart beat, hungry, hair growth) adjusted by the autonomic nervous system. The brain, too, does much of its work without a person noticing it. The unconscious mind refers to the brain activities which are hardly ever noticed.
Water vascular system of star fish
he water vascular system is a modified part of the coelom.
It is otherwise called the ambulacral system.
Pila reproduction.pptx
1. The reproductive systems of male and female Pila snails show sexual dimorphism.
2. In males, sperm develops in the testis and is stored in the vas deferens before being deposited in females during copulation.
3. In females, eggs develop in the ovary and are fertilized internally before being laid externally, where development occurs without parental care.
Digestive system of pila
The digestive system of the apple snail (Pila) consists of a coiled alimentary canal and digestive glands. The alimentary canal contains a buccal cavity with a radula that rasps food, an esophagus, stomach, intestine, and rectum. Digestive glands include buccal, salivary, and hepatopancreatic glands. The radula cuts food which is then mixed with saliva and further digested in the stomach by digestive juices. Partly digested food particles enter cells of the hepatopancreas for intracellular digestion and absorption of nutrients mainly takes place in the digestive gland and intestine. Both extracellular and intracellular digestion occur with the stomach and
Leech.pptx
The document summarizes the key characteristics of the Indian cattle leech (Hirudinaria granulosa). It lives in freshwater habitats in parts of Asia and feeds on the blood of various animals, including cattle and humans. The body is soft and elongated, segmented into 33 segments. It has distinctive coloration and two suckers used for attachment and feeding. The document describes the leech's external morphology, internal body structure, and two modes of locomotion.
23 female-reproductive-system-1213116557688874-8-1
The male and female reproductive systems ensure sexual maturation and propagation of future generations through specialized organs. Both systems contain gonads that produce gametes and sex hormones, and become functional at puberty. While they share some similarities, such as homologous embryonic tissues, the systems also have differences. Females have ovaries that release eggs periodically and a uterus for potential pregnancy, while males have testes that continuously produce sperm. Fertilization occurs when sperm meets eggs in the fallopian tubes.
Female reproductive system
This document provides an overview of the major organs of the female reproductive system, including their functions and histology. It describes the ovaries, uterine tubes, uterus, vagina, vulva, and mammary glands. For each organ, it outlines their structure, layers, role in reproduction and production of hormones or other substances. The summary focuses on providing a high-level understanding of the key components and processes of the female reproductive system.
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This document provides details about the sensory organs, reproductive system, and development of the freshwater snail Pila. It describes the osphradium, statocyst, eyes, and tentacles as sensory organs. The reproductive systems of both male and female Pila are examined, including testes, vas deferens, penis, and ovaries. Fertilization occurs internally in the uterus, and eggs are laid in masses. Larval development involves a trochophore stage followed by a veliger larva.
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The document summarizes the external features, anatomy, and reproductive system of the apple snail (Pila globosa). Some key points:
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- The body consists of a head, foot, and visceral mass contained within the shell whorls. It has two pairs of tentacles and eyes on stalks.
- Reproduction is dioecious. The male has a penis, vas deferens and testis. The female has an ovary. Fertilization is internal.
Canal system
The canal system in sponges helps with food acquisition, gas exchange, and waste removal. It is composed of incurrent canals that bring water into the body through openings called ostia. The water then flows into radial canals lined with collar cells that have flagella to capture food particles. These radial canals open into a central cavity called the spongocoel. Water then exits through openings called oscula. There are several types of canal systems that vary in complexity, but all involve water entering through ostia, flowing through flagellated chambers that capture food, and exiting through oscula.
canal system
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2) There are three main types of canal systems - ascon, sycon, and leucon. The ascon system has a single central cavity called a spongocoel. The sycon system has incurrent and radial canals. The leucon system has more complex branching of flagellated chambers and canals.
3) Water flow through the canal system is driven by beating flagella of collar cells called choanocytes. It brings in food and oxygen and removes waste from the sponge.
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Mammalian Circulatory system
The mammalian circulatory system consists of a four-chambered heart that pumps blood through the body. The heart has four valves that ensure blood flows in one direction. It pumps deoxygenated blood to the lungs and oxygenated blood to the body in a continuous closed circuit. The cardiac cycle involves repeated ventricular contraction and relaxation. Contraction is driven by electrical signals that cause the muscles to depolarize and repolarize. This pumps blood out of the heart and allows it to refill between beats.
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2. The larva lives filter feeding in freshwater for 3-7 years, looking similar to lancelets, before undergoing dramatic changes to transform into the parasitic adult form and transition to saltwater.
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The document summarizes the development of the kidney in vertebrates. It discusses the three main stages of kidney development: (1) the pronephros, which is an initial kidney that forms but then degenerates; (2) the mesonephros, which briefly functions as a kidney in some species; and (3) the metanephros, which develops from the intermediate mesoderm and ureteric buds and forms the permanent kidney through reciprocal interactions between epithelial and mesenchymal tissues. The ureteric buds branch and induce surrounding mesenchyme to form nephrons, while the mesenchyme causes further branching of the ureteric ducts, resulting in the
Comparision of brain in vertebrates
The vertebrate brain
The vertebrate brain is the main part of the central nervous system. The brain and the spinal cord make up the central nervous system,
In most of the vertebrates the brain is at the front, in the head. It is protected by the skull and close to the main sense organs.
Brains are extremely complex and the part of human and animal body. The brain controls the other organs of the body, either by activating muscles or by causing secretion of chemicals such as hormones and neurotransmitters.
Muscular action allows rapid and coordinated responses to changes in the environment.
The brain of an adult human weights about 1300–1400 grams .
In vertebrates, the spinal cord by itself can cause reflex responses as well as simple movement such as swimming or walking. However, sophisticated control of behaviour requires a centralized brain.
The structure of all vertebrate brains is basically the same.
At the same time, during the course of evolution, the vertebrate brain has undergone changes, and become more effective.
In so-called 'lower' animals, most or all of the brain structure is inherited, and therefore their behaviour is mostly instinctive.
In mammals, and especially in man, the brain is developed further during life by learning. This has the benefit of helping them fit better into their environment. The capacity to learn is seen best in the cerebral cortex.
Three principles
The brain and nervous system is essentially a system which makes connections. It has input from sense organs and output to muscles. It is connected in several ways with the endocrine system, which makes hormones, and the digestive system and sex system. Hormones work slowly, so those changes are gradual.
The brain is a kind of department store. It has, all inter-connected, departments which do different things. They all help each other gather senses.
Much of what the body does is not conscious. Basically, much of the body runs on automatic (breathing, heart beat, hungry, hair growth) adjusted by the autonomic nervous system. The brain, too, does much of its work without a person noticing it. The unconscious mind refers to the brain activities which are hardly ever noticed.
Water vascular system of star fish
he water vascular system is a modified part of the coelom.
It is otherwise called the ambulacral system.
Pila reproduction.pptx
1. The reproductive systems of male and female Pila snails show sexual dimorphism.
2. In males, sperm develops in the testis and is stored in the vas deferens before being deposited in females during copulation.
3. In females, eggs develop in the ovary and are fertilized internally before being laid externally, where development occurs without parental care.
Digestive system of pila
The digestive system of the apple snail (Pila) consists of a coiled alimentary canal and digestive glands. The alimentary canal contains a buccal cavity with a radula that rasps food, an esophagus, stomach, intestine, and rectum. Digestive glands include buccal, salivary, and hepatopancreatic glands. The radula cuts food which is then mixed with saliva and further digested in the stomach by digestive juices. Partly digested food particles enter cells of the hepatopancreas for intracellular digestion and absorption of nutrients mainly takes place in the digestive gland and intestine. Both extracellular and intracellular digestion occur with the stomach and
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Similar to Female reproductive system of fasciola hepatica
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The male and female reproductive systems ensure sexual maturation and propagation of future generations through specialized organs. Both systems contain gonads that produce gametes and sex hormones, and become functional at puberty. While they share some similarities, such as homologous embryonic tissues, the systems also have differences. Females have ovaries that release eggs periodically and a uterus for potential pregnancy, while males have testes that continuously produce sperm. Fertilization occurs when sperm meets eggs in the fallopian tubes.
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anatomyandphysiologyoffemalereproductivesystem-160229181400.pdf
The document summarizes key aspects of the female reproductive system. It discusses the functions of the vagina, uterus, fallopian tubes, and ovaries. It notes that the normal pH of the vagina is 4 and the gestation period is 40 weeks. It describes the menstrual cycle and the number of eggs released over a woman's lifetime. It provides details on the internal and external female genitalia and their roles in reproduction and childbirth.
anatomyandphysiologyoffemalereproductivesystem-160229181400.pdf
The female reproductive system has several key functions:
1) To carry out monthly ovulation and menstruation cycles, where one egg is typically released every 28 days from around puberty to menopause.
2) To provide a suitable environment for fertilization and fetal development via the vagina, uterus, and fallopian tubes.
3) To support gestation and ultimately birth, with the normal human pregnancy lasting around 40 weeks.
Anatomy and physiology of female reproductive system
The document summarizes key aspects of the female reproductive system. It discusses the functions of the vagina, uterus, fallopian tubes, and ovaries. It notes that the normal pH of the vagina is 4 and gestation period is 40 weeks. It describes the menstrual cycle and the number of eggs released over a woman's lifetime. It provides details on the internal and external female genital organs and their roles in reproduction and childbirth.
2. Human reproduction.pptx
The document provides an overview of the human reproductive system. It describes the key functions and structures of both the male and female reproductive systems. In the male system, it explains gametogenesis (sperm production) in the testes and seminiferous tubules, and the role of accessory organs like the vas deferens and seminal vesicles. In the female system, it outlines gametogenesis (egg production) in the ovaries, as well as the functions of structures like the fallopian tubes, uterus, and vagina in supporting fertilization and pregnancy. Key reproductive events from fertilization to childbirth are also summarized.
Class 12 biology human reproductive ...
Human reproduction involves several key processes:
1. Gametogenesis is the formation of gametes (sperm and eggs) in the gonads through meiosis.
2. Puberty initiates sexual maturation and the ability to reproduce.
3. Fertilization occurs when sperm fuse with eggs, forming a zygote.
4. Gestation is the period of embryonic development from conception until birth.
Human Reproducton and biological change.pptx
The document discusses human reproduction and the male and female reproductive systems. It describes the major functions and events of the reproductive system including gametogenesis, fertilization, implantation, and development of the fetus. It provides detailed information on sperm production (spermatogenesis) in the testes and ovaries, and the structures and roles of reproductive organs like the fallopian tubes, uterus, and vagina in females and the testes, epididymis, and accessory glands in males.
Human reproduction
Human reproduction involves sexual reproduction and viviparity. The male reproductive system includes testes that produce sperm and testosterone. Spermatogenesis occurs in the seminiferous tubules of the testes. The female reproductive system includes ovaries that produce eggs and release them during ovulation, and other structures like the uterus that support gestation. Oogenesis occurs in the ovaries and involves the formation of eggs. Fertilization happens when sperm fuse with an egg, forming a zygote. If implantation occurs, gestation and birth will follow.
Human reproduction
This presentation is a part of Class 12 Biology (NCERT) syllabus.
Contents of the presentation is also important for NEET-UG aspirants.
Male and female rep system
The female reproductive system produces eggs and sex hormones, transports eggs to the uterus, sustains a pregnancy, and nourishes a fetus. It includes ovaries, fallopian tubes, uterus, vagina, and external genitals. The ovaries contain eggs at various stages of development and release an egg monthly during ovulation. The fallopian tubes transport eggs from the ovaries to the uterus. The uterus provides support and nutrients for a developing fetus. The male reproductive system produces and transports sperm. It includes testes, epididymis, vas deferens, seminal vesicles, prostate, and penis. The testes produce sperm and hormones. Mature sperm are stored in the epididymis and vas deferens until ejaculation
178-Anatomy-Reproductive-System.ppt
power point presentation of anatomy and physiology of reproductive system...............................................................
Female reproductive system
The document summarizes the key parts and functions of the female reproductive system. It describes how the ovaries produce eggs and hormones, the fallopian tubes transport eggs to the uterus, and the uterus provides nourishment for a developing fetus. It also outlines the menstrual cycle and explains how the release of eggs, changes in hormones, and shedding of the uterine lining occur in a monthly cycle. Finally, it briefly discusses the breasts and their role in lactation after pregnancy.
Female reproductive anatomy
The female reproductive system includes external structures like the clitoris and labia, and internal organs like the ovaries, fallopian tubes, and uterus. The ovaries contain follicles that release eggs during ovulation, which then travel through the fallopian tubes to the uterus. If an egg is fertilized, the corpus luteum in the ovary secretes hormones to support pregnancy in the uterus.
Anat & Physio.pptx
The female reproductive system includes both external and internal structures. The external structures are the labia majora, labia minora, Bartholin's glands, and clitoris. The internal structures include the vagina, uterus, ovaries, and fallopian tubes. The vagina leads to the cervix and uterus. The uterus houses and nourishes a developing fetus. The ovaries produce eggs and hormones, and the fallopian tubes connect the ovaries to the uterus to allow for fertilization and implantation.
Urinogenital system of pigeon
The urinogenital system of pigeons includes excretory and reproductive organs that are closely connected structurally. The excretory system includes paired kidneys and ureters. Adult pigeons lack a urinary bladder to reduce weight for flight. The reproductive system is sexually dimorphic. In males it includes paired testes that produce sperm and vas deferens, while in females it includes a left ovary and oviduct that produces eggs. During development and egg-laying, these organs undergo changes regulated by hormones to carry out their excretory and reproductive functions.
HUMAN REPRODUCTION.pptx
The document summarizes key aspects of human reproduction. It describes the male and female reproductive systems and their components. Spermatogenesis and oogenesis are the processes by which sperm and eggs are produced. Fertilization occurs when a sperm fuses with an egg in the fallopian tubes. The fertilized egg undergoes cleavage and blastulation as it travels to the uterus. Implantation occurs as the blastocyst attaches to the uterine wall, initiating pregnancy. Pregnancy lasts about 9 months and has three trimesters of development.
Reproductive systems of male & female
The male and female reproductive systems ensure sexual maturation and propagation of future generations through specialized organs. Both systems have gonads that produce gametes and sex hormones. The female system includes ovaries, fallopian tubes, uterus, vagina and mammary glands. Fertilization occurs when sperm meets eggs in the fallopian tubes. Puberty activates these systems through hormones, allowing males to produce sperm and females to experience menstruation. While both systems share similarities, females have a relatively fixed number of eggs released periodically compared to males' continuous sperm production.
Female reproductive system presentation
The female reproductive system consists of internal and external organs that work together to produce eggs, facilitate fertilization and pregnancy, and nourish infants. The internal organs include the uterus, ovaries, fallopian tubes, and vagina. The ovaries produce eggs and hormones, the fallopian tubes transport eggs to the uterus, the uterus houses and nourishes the developing fetus, and the vagina is the birth canal. Externally, breasts produce milk via lactation to feed newborns. The system ensures human reproduction and survival of offspring.
Female reproductive system.pptx
The female reproductive system contains ovaries that produce eggs through oogenesis, accessory glands, and ducts connecting the parts. Eggs mature as they move down structures called ovarioles in each ovary and are released into the oviducts. Accessory glands secrete fluids and a protein shell around the egg. During mating, sperm are deposited and stored in the spermatheca until ovulation, when an egg passes and stimulates sperm release for fertilization.
Similar to Female reproductive system of fasciola hepatica (20)
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anatomyandphysiologyoffemalereproductivesystem-160229181400.pdf
anatomyandphysiologyoffemalereproductivesystem-160229181400.pdf
anatomyandphysiologyoffemalereproductivesystem-160229181400.pdf
anatomyandphysiologyoffemalereproductivesystem-160229181400.pdf
Anatomy and physiology of female reproductive system
Anatomy and physiology of female reproductive system
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学校原件一模一样【微信：741003700 】《(salfor毕业证书)索尔福德大学毕业证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
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Female reproductive system of fasciola hepatica
- 1. Female Reproductive System of Fasciola hepatica
- 2. Reproductive System of Fasciola hepatica Hermaphrodite Usually cross fertilization The reproductive organs are well developed and complex
- 3. Female Reproductive System of Fasciola hepatica The female reproductive system consists of Ovary, Oviduct, Uterus, Vitelline glands, Mehlis’s glands and Laurer’s canal
- 4. Ovary: The ovary is single tubular Highly branched situated to the anterior of testes at the right side in anterior one-third of the body
- 5. Oviduct: All the branches of ovary open into a short and narrow tube called oviduct The oviduct travels down obliquely and opens into the median vitelline duct
- 6. Uterus: From the junction of oviduct and median vitelline duct arises a wide convoluted uterus having fertilised shelled eggs or capsules. The uterus opens by female genital aperture into the common genital atrium on the left side of male genital aperture. The uterus is comparatively small and it lies in front of the gonads. The terminal part of uterus has muscular walls, referred to as metraterm which ejects the eggs and also sometimes receives the cirrus during copulation.
- 7. Vitelline Glands: On both lateral sides and also behind the testes are numerous follicles constituting the vilellaria, yolk glands or vitelline glands which produce albuminous yolk and shell material for the eggs. The vitelline glands open by means of minute ducts into a longitudinal vitelline duct on each side. The two longitudinal ducts are connected together by a transverse vitelline duct placed above the middle of the body. The transverse vitelline duct is swollen in the centre to form the yolk reservoir or vitelline reservoir. From the yolk reservoir a median vitelline duct starts and runs forward to join the oviduct.
- 8. Mehlis’s Glands: A mass of numerous unicellular Mehlis’s glands is found situated around the junction of median vitelline duct, oviduct and uterus. The secretion of Mehlis’s glands lubricates the passage of eggs in the uterus also activates spermatozoa. Laurer’s Canal: From the oviduct arises a narrow Laurer’s canal, it runs vertically upwards This canal opens on the dorsal side temporarily during breeding season and acts as vestigial vagina to serve as copulation canal
- 10. Thank You!!!!!