Lab2 Fetal Pig Dissection, Human sexuality
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This document provides an overview of the topics and structures to be covered in a fetal pig dissection lab, including the reproductive, circulatory, respiratory, and other body systems of mammals. It outlines safety procedures for the dissection and initial cuts to make on the fetal pig. It also includes links to videos on suturing techniques and descriptions of the developing fetal heart. Additional resources are provided on the anatomy and functions of organs like the liver, pancreas, kidneys, and reproductive systems of humans and other mammals. Concepts like the menstrual cycle, contraception methods, and sexually transmitted diseases are also to be reviewed.
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11.4 sexual reproduction (1).pptx
The document summarizes key aspects of sexual reproduction in animals. It discusses that both sperm and egg cells are produced through meiosis, resulting in haploid gametes. Fertilization involves the fusion of sperm and egg to form a diploid zygote, which can develop into a new organism. It provides explanations of spermatogenesis and oogenesis, the processes by which sperm and eggs are produced respectively, as well as several other aspects of fertilization and early embryonic development.
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This document provides an introductory lecture on infertility and sterility for veterinary students. It discusses the key reproductive organs and hormones involved in the estrous cycle. It describes how the hypothalamus and pituitary gland regulate reproduction and the roles of the ovaries, uterus, cervix and other female organs. It then covers factors that can influence infertility and sterility, including endocrinological disorders, mismanagement, reproductive diseases, anatomical defects, and environmental defects. Finally, it discusses reproductive efficiency and various reproductive indices used to measure performance.
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1. The document describes key learning outcomes related to embryogenesis and placental function, including the formation of body folds during embryogenesis, development of extraembryonic structures like the yolk sac and allantois, and different types of placentas.
2. It notes that the placenta has important endocrine functions in ensuring adequate resources like glucose and amino acids are directed to the developing fetus, and discusses various fetal adaptations that help ensure adequate oxygen perfusion of tissues.
3. Various classifications of placentas are described based on histological features of the fetal-maternal interface and anatomical patterns of contact between chorion and endometrium.
Male reproductive system
The male reproductive system has the sole function of producing sperm and delivering it to females. The testes produce sperm through spermatogenesis within seminiferous tubules. Mature sperm travel through the epididymis, vas deferens, seminal vesicles, prostate gland, and urethra, where they mix with fluids before being ejaculated via the penis. The process takes about 74 days and requires a temperature slightly below normal body heat.
11.4 sexual reproduction
- Spermatogenesis and oogenesis both involve mitosis, meiosis, and cell differentiation to produce gametes. However, they result in different numbers and types of gametes.
- Fertilization internally involves many sperm penetrating the egg's layers until one fuses with the egg cytoplasm to form a zygote, preventing multiple fertilizations.
- Early embryo development includes cell division as the embryo moves through the fallopian tube and implants in the uterus, forming a placenta to exchange nutrients with the mother.
D5 hormones and metabolism presentation
Hormones are chemical messengers that are secreted by endocrine glands directly into the bloodstream and have effects at low concentrations throughout the body. There are two main types of hormone receptors: steroid hormones bind to receptors in the cell cytoplasm and form complexes that enter the nucleus and affect gene transcription, while peptide hormones bind to receptors in the plasma membrane and activate intracellular second messenger systems. The hypothalamus controls hormone secretion from the pituitary gland which regulates growth, development, reproduction and homeostasis. Some athletes improperly use growth hormones in attempts to build muscle mass despite health risks.
CHAPTER 24 Male Reproductive SystemSTUDENT LEARNING OBJECTIVES
CHAPTER 24 Male Reproductive System
STUDENT LEARNING OBJECTIVES
At the completion of this chapter, you should be able to do the following:
1.Explain how sexual reproduction and asexual reproduction differ.
2.Briefly outline the male reproductive organs.
3.Discuss the structure and function of the testes.
4.Describe how testosterone works in the male body.
5.Outline the roles of FSH and LH in the male reproductive system.
6.Discuss the functions of the various reproductive ducts (epididymis, vas deferens, ejaculatory duct, and urethra)
7.Outline the role of the accessory reproductive glands.
8.List some factors that affect male fertility.
LANGUAGE OF SCIENCE AND MEDICINE
Before reading the chapter, say each of these terms out loud. This will help you avoid stumbling over them as you read.
accessory organ (ak-SES-oh-ree OR-gan)
[access- extra, -ory relating to, organ instrument]
acrosome (AK-roh-sohm)
[acro- top or tip, -some body]
anal triangle (AY-nal)
[an- ring (anus), -al relating to]
androgen (AN-droh-jen)
[andro- male, -gen produce]
androgen-binding protein (ABP) (AN-droh-jen-BYND-ing PRO-teen)
[andro- male, -gen produce, prote- first rank, -in substance]
asexual reproduction (ay-SEK-shoo-al re-proh-DUK-shun)
[a- without, sexu- sex, -al relating to, re- again, -produc- bring forth, -tion process]
benign prostatic hypertrophy (BPH) (be-NYNE proh-STAT-ik hye-PER-troh-fee)
[benign kind, pro- before, -stat- set or place, -ic relating to, hyper- excessive or above, -troph- nourishment, -y state]
bulbourethral gland (BUL-boh-yoo-REE-thral)
[bulb- swollen root, -ure- urine, -thr- agent or channel (urethra), -al relating to]
capacitation (kah-pass-ih-TAY-shun)
clone (klohn)
[clon a plant cutting]
corpus cavernosum (KOHR-pus kav-er-NO-sum)
[corpus body, cavern- large hollow, -os- relating to, -um thing] pl., corpora cavernosa (KOHR-poh-rah kav-er-NO-sah)
corpus spongiosum (KOHR-pus spun-jee-OH-sum)
[corpus body, spong- sponge, -os- relating to, -um thing] pl., corpora spongiosa (KOHR-poh-rah spun-jee-OH-sah)
cremaster muscle (kreh-MASS-ter MUSS-el)
[cremastos- hanging, mus- mouse, -cle little]
ejaculation (ee-jak-yoo-LAY-shun)
[e- out or away, -jacula- throw, -ation process]
ejaculatory duct (ee-JAK-yoo-lah-toh-ree)
[e- out or away, -jacula throw, -ory relating to, ducere- lead]
emission (ee-MISH-un)
[e- out or away, -mis- send, -sion process]
epididymis (ep-ih-DID-ih-mis)
[epi- upon, -didymis pair] pl., epididymides (ep-ih-DID-ih-mih-deez)
erection (ee-REK-shun)
essential organ (OR-gan)
[organ instrument]
external genitalia (eks-TER-nal jen-ih-TAIL-yah)
[extern- outside, -al relating to, gen- produce, -al relating to]
gamete (GAM-eet)
[gamete marriage partner]
glans penis (glans PEE-nis)
[glans acorn, penis male sex organ] pl., glandes penes (GLAN-deez PEE-neez)
gonad (GO-nad)
[gon- offspring, -ad relating to]
head
hyaluronidase (hye-al-yoo-RAHN-id-ayz)
[hyal- glass, -uron- urine, -id- relating to, -ase enzyme)
inhibin (in-HIB-in)
[inhib- inh ...
Similar to Lab2 Fetal Pig Dissection, Human sexuality (20)
Various Parts Of Reproductive Organs& Their Functions
Various Parts Of Reproductive Organs& Their Functions
Various Parts Of Reproductive Organs& Their Functions
Various Parts Of Reproductive Organs& Their Functions
CHAPTER 24 Male Reproductive SystemSTUDENT LEARNING OBJECTIVES
CHAPTER 24 Male Reproductive SystemSTUDENT LEARNING OBJECTIVES
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