Trypansoma cruzi
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The document summarizes key morphological stages in the life cycle of American trypanosomes, including the epimastigote and trypomastigote stages. It also describes the physical features of the Triatoma bug, the insect vector that transmits trypanosomes, noting its size, coloration, segmented antennae, proboscis, wing structure, and abdominal segments.
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The document discusses meristematic tissues and apical meristems in plants. It summarizes that the shoot apical meristem (SAM) and root apical meristem (RAM) contain stem cells and are responsible for postembryonic growth. The SAM contains four distinct cell groups and is maintained by genes like SHOOT MERISTEMLESS, WUSCHEL, and CLAVATA1/3. The RAM contains a quiescent center and produces root cells. Key genes that regulate SAM and RAM development include MONOPTEROS and HOBBIT.
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Periplanata americana
morphology, sense organs
anatomy - digestive system
respiratory system
excretory system
nervous system
circulatory system
reproductive system
Useful for NEET 12 th
Morphology of cockroach 2
this is a ppt on morphology of cockroach , the first part of the chapter of class 11 Structural organisation of animals .
Megasporogenesis
This document discusses megasporogenesis and development of the female gametophyte or embryo sac in plants. It describes how one cell in the nucellus develops into the megaspore mother cell, which then undergoes meiosis to form four megaspores. Typically one megaspore remains functional and develops into the embryo sac through three mitotic divisions, forming eight nuclei that develop into the various cell types of the embryo sac: egg, synergids, central cell, and sometimes antipodals. Various types of embryo sac development are described, from the most common monosporic type to rarer tetrasporic types. The roles and structures of the egg, synergids, and antipodals
Monocot and dicot navi
This document discusses monocot and dicot embryogenesis. It describes the key structures and regions of the embryonic axis in monocots and dicots, including the epicotyl, hypocotyl, cotyledons, plumule, and radicle. It also summarizes the different types of dicot embryogenesis based on the contribution of the apical and basal cells, such as the onagrad, asterad, solanad, and chenopodiad types. The embryogenesis process in the monocot Najas is also outlined in detail.
Developmental Biology
The document summarizes key aspects of embryonic development in animals, including:
- The three germ layers (endoderm, mesoderm, ectoderm) and what tissues each produces. The endoderm forms digestive tract linings, the mesoderm forms muscles and circulatory tissues, and the ectoderm forms the epidermis and nervous system.
- Cleavage patterns in early embryos, including holoblastic vs meroblastic cleavage. Cleavage planes like meridional, vertical, equatorial and latitudinal are also defined.
- Fate maps show the positions of presumptive tissues in early embryos, like those of amphioxus which mark areas that will form
selaginella species characters and distribution .pptx
Selaginella, commonly known as club moss or spike moss, is a lycophyte that has worldwide distribution, especially in tropical regions. It reproduces both sexually and asexually. The sporophyte produces microspores and megaspores via heterosporous sporangia on sporophylls arranged in strobili. Microspores develop into small, triradiate male gametophytes while megaspores become larger, lobed female gametophytes. Fertilization occurs when sperm from the male gametophyte fertilizes eggs in the female gametophyte, forming a diploid sporophyte and completing the life cycle of alternation of generations.
Pteridophytes
1. Selaginella is a heterosporous plant that produces megaspores and microspores. The spores develop into male and female gametophytes within their spore walls.
2. Microspores develop into male gametophytes containing antherozoids for fertilization. Megaspores develop into female gametophytes containing archegonia.
3. Fertilization occurs when antherozoids enter the archegonia through openings in the neck canal cells. This leads to the development of a diploid sporophyte within the megaspore.
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Insect body segmentation , all about the parts of insect body , body parts of...
Insect body segmentation , all about the parts of insect body , body parts of...
COCKROACH ( structural organization in animal) full pdf
COCKROACH ( structural organization in animal) full pdf
selaginella species characters and distribution .pptx
selaginella species characters and distribution .pptx
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renal module 2022.pdf
The document summarizes the life cycle of Schistosoma (blood fluke) parasites. It describes the adult male and female worms, including their sizes, locations of organs, and differences between S. haematobium and S. mansoni. It also describes the eggs produced by female worms, including sizes and key distinguishing characteristics. Additionally, it mentions the cercaria larval stage that forms in infected snails and has organs allowing penetration of human skin to continue the life cycle. The life cycle involves adult worms mating in human veins, females laying eggs, eggs passing in urine or stool to water where they infect snail intermediate hosts, and cercaria emerging from snails to penetrate human skin.
Practical slides 2020 for 1st grade students
This document contains images of various parasites and vectors relevant to medical parasitology. It includes images of Trypanosoma cruzi trypomastigotes, an adult Triatoma bug, Ascaris adult worms and eggs, the buccal capsule of Ancylostoma duodenalis, an adult female and male Ancylostoma with views of their copulatory bursae. The images provide visual examples of organisms studied in medical parasitology.
Parasitology practical revision schemes 2020
The document describes the morphological features of various parasites and their eggs, larvae, cysts, and adult forms:
1. Parasite eggs come in different shapes - spherical, oval, D-shaped, tray-like - and some have special features like spines or capsules.
2. Larval forms include cercariae that are biforked-tailed or have distinctive head and tail colors, and cysticercoids that may appear red or embryo-like.
3. Adult parasites include flukes that are leaf-like, tapeworm segments that are square or barrel-shaped, and filarial worms found in nodules with double uteri.
4. Sections
Parasitology slides 2020 kfs
This document contains 48 entries describing parasites commonly found in humans. Each entry provides the name of a parasite, its life stage when applicable, and recommended magnification for microscopic examination. The parasites are grouped into sections on trematodes, cestodes, nematodes, and protozoa. Key information is provided on parasite morphology and life cycles to aid in identification and diagnosis of parasitic infections.
practical arthropods part 2
This document summarizes key characteristics of different types of flies and fleas. It describes features of Glossina flies, Musca domestica house flies, several bottle flies (Caliphora, Lucelia, Sarcophaga, Wohlfahrtia), and different flea species. For each, it highlights traits like size, coloration, wing and proboscis structure, abdominal patterns, presence of combs or hairs, and distinguishing anatomical features. The document provides visuals of male and female flea anatomy and compares features of combed and non-combed flea species.
Plasmodium
This document discusses malaria and its causative parasite species Plasmodium. It identifies four Plasmodium species that cause malaria in humans: P. vivax, P. ovale, P. malariae, and P. falciparum. P. falciparum is shown to have multiple ring stages in its life cycle. The document was authored by Mohammed Abdelmoneim Abdelhamid from the Parasitology Department faculty of medicine at KFS university.
Toxoplasma gondii
Toxoplasma gondii is a parasite with a life cycle that involves rodents and cats. It has two stages - the tachyzoite stage where it is crescent-shaped and has a spherical nucleus at the broader end, and the oocyst stage where it is oval-shaped and contains sporocysts and sporozoites. The document provides details on the morphology, life cycle, and microscopic images of T. gondii.
Arthropods 1
The document summarizes key morphological features of mosquitoes and sand flies. It describes the distinguishing characteristics of mosquito eggs, larvae, pupae, wings, and the males and females of different mosquito genera. It also provides an overview of the anatomy of sand flies, highlighting physical traits of the head, thorax, wings, and distinguishing male and female abdominal structures.
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Trypansoma cruzi
- 1. Parasitology department faculty of medicine KFS university.
- 2. Heamoflagellates - - LEISHMANIAL - - TRYPANSOMA
- 4. Life cycle of American trypanosomes
- 7. Epimastigote Shape : spindle shaped with pointed end Central oval nucleus Kinetoplast anterior to nucleus, Cosist of parabasal body blepharoblast And blepharoplasty from which the flagellum arises The flagellum runs along the edge as Undulating membrane till anterior end flagellum nucleus
- 8. Trypomastigote Shape : spindle C shaped with pointed end Central vesicular nucleus Kinetoplast is posterior to the nucleus (prominent) Flagellum runs from posterior end along the Edge as undulating membrane till the Anterior end
- 11. Triatoma bug adult ( DM microscope) Large insect, 2-3cm in length with bright colours. Head: cone-shaped with eyes one pair of four-segmented antennae and long proboscis bent underneath the body at rest. Thorax: with 2 complete pairs of wings ; the mesothoracic pair has the basal part chitinised and the distal part membranous while the metamoracic pair is membranous. Abdomen: 8 segments with sharp borders, covered by the wings at rest
- 13. Thank you