BIOS 256 Lab 6

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Chamberlain College of Nursing *

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255

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Anatomy

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Oct 30, 2023

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docx

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Uploaded by CoachEchidna4182

1 Reproductive System Anatomy Lab References: Saladin, KS: Anatomy and Physiology, The Unity of Form and Function 9th edition Be sure you have read and understood Chapter before beginning this lab. RULES for laboratory presentations: 1. The presentation should be in PPT format. 2. Use models and dissection models that are presented during the lab class. 3. Figures and pictures from the internet won’t be accepted. 4. ONLY use Fig from Saladin’s book. 5. Use only the histology slide that will be presented in class. 6. Laboratory PPT will include labeling and function of the structures presented during the lab. 7. Answer the questions 1-5 Learning outcomes of the lab exercises: 1. To identify and structures of the male and female reproductive systems on an appropriate model, and to describe the functions of each. 2. To trace the pathway followed by a sperm from its site of formation to its destination. 3. To trace the pathway followed by an egg from its site of formation to its destination. 4. To identify and general microstructures of the male and female systems. INTRODUCTION “Small, uncoordinated, and slick with amniotic fluid, a newborn encounters the world outside of her mother’s womb. We do not often consider that a child’s birth is proof of the healthy functioning of both her mother’s and father’s reproductive systems. Moreover, her parents’ endocrine systems had to secrete the appropriate regulating hormones to induce the production and release of unique male and female gametes, reproductive cells containing the parents’ genetic material (1 set of 23 chromosomes). Her parent’s reproductive behavior had to facilitate the transfer of male gametes—the sperm—the female reproductive tract at just the right time to encounter the female gamete, an oocyte (egg). Finally, combination of the gametes (fertilization) had to occur, followed by implantation and development. In this chapter, you will explore the male and female reproductive systems, whose healthy functioning can culminate in the powerful sound of a newborn’s first cry. Male Reproductive Anatomy - The scrotum is the sac that hangs at the root of the penis and holds the testes. - The epididymis sits posterior to the testes within the scrotum. - The structures of the testes connect to the body cavity via the spermatic cord. - The ductus deferens, or spermatic duct, enters the abdomen and travels along the base of the bladder. - The prostate gland produces seminal fluids and can be palpated through the anterior wall of the rectum. - The urethra carries semen or urine out of the body. - The glans is the expanded tip of the penis.

Identify The following structures on a MALE lab model and describe their functions: 1. Scrotum 2. Testes 3. Epididymis 4. Ductus deferens (= vas deferens) 5. Spermatic cord 6. Seminal vesicle 7. Prostate gland 8. Bulbourethral glands 9. Penis -corpus cavernosum -corpus spongiosum

Female Reproductive Anatomy - The pair of ovaries sits in the abdominal cavity lateral to the uterus. - The uterus flexes anteriorly over the bladder. - The uterine tubes connect the uterus with the peritoneal cavity near each ovary. - The cervix is the narrow neck of the uterus. - The vagina is the copulatory organ of the female. - The mons pubis is a fatty, rounded area overlying the pubic symphysis. It is covered with hair after puberty. - The clitoris is a small extension of erectile tissue. - A pair of skin folds called the labia majora run posteriorly form the mons pubis. - The labia minora are two thin, hairless folds that outline the vestibule.

Identify the following structures on a FEMALE lab model and describe their functions: 1. Ovaries Mesenteries associated with the ovaries - -broad ligament -suspensory ligament of the ovary -ovarian ligament 2. Uterine tubes (= fallopian tubes), and its named regions - -fimbriae -infundibulum 3. Uterus -fundus -body -cervix 4. Vagina 5. Clitoris 6. Labia minora 7. Labia majora 8. Urethral orifice 9. Vestibule -greater vestibular glands 10.Nipple 11.Areola 12.Lobules (containing alveoli) 13.Lactiferous ducts 14.Lactiferous sinuses

Label the fig above. (A)

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