8. The main control center that coordinates the functions of both the male and f

Question

8. The main control center that coordinates the functions of both the male and female reproductive systems is the: a. anterior pituitary d. penis or clinoris c. ovary or testicle The site of final maturation and storage of sperm cells before their ejaculation is a. seminal vesicles b. seminiferous tubules , epididymus 9. d. glans penis e. sperm bank 10. The uterine phase that develops after ovulation due to a rapid fall in progesteronde and estrogen levels after ovulation is: a. the menses b. the proliferative phase c. the secretory phase d. the follicular phase e the luteal phase 11. What is the path that sperm follow through the male reproductive tract? a. epididymis, ejaculatory duct, seminiferous tubules, vas deferens, urethra b. seminiferous tubules, epididymis, vas deferens, ejaculatory duct, urethra c. epididymis, vas deferens, seminiferous tubules, ejaculatory duct, urethra d. urethra, epididymis, ejaculatory duct, vas deferens, seminiferous tubules e. urethra, ejaculatory duct, vas deferens, seminiferous tubules, epididymis 12. Colostrum is different from true milk because it contains less lactose and virtually no: a. protein d. iron b. fat c. sodium 13. During sexual arousal in males and females, erotic thoughts and/or sensory stimulation both lead tothat produces engorgement of the erectile tissues. a. sympathetic activity b. hypothalamic activity c. increased cerebellar activity d. parasympathetic activity e. testosterone secretion 14. Functions of the accessory glands of the male reproductive system include all of the following EXCEPT a. production of spermatozoa b. meeting the nutrient needs of spermatozoa for motility c. propelling spermatozoa and fluids along the reproductive tract d. buffering acidic secretions e. activating the spermatozoa

Explanation / Answer

8. Option a. Anterior Pituitary

Explanation: Anterior pituitary secrete lutenizing hormone, gonadotropin releasing hormone, follicle stimulating hormone which control the male and female reproductive system. Posterior pituitary do not secrete hormones that control reproductive system, pe_nis/ cli_toris are external genital organs and not responsible for control and coordination, hypothalamus also do not pariticipate in control and coordination. Ovary or testes secrete primary se_x hormones but do not involve in control.

9. Option c. epididymis

Explanation: Seminiferous vesicles are accessory reproductive organs which provides the liquid medium to the sperm to form semen. Spermatozoa are produced within the seminiferous tubules of testes. Glans pen_is the head of the pe_nis which is made up of corpus spongiosum only and located at the external urethral orifice. Sperm bank is not present in the male reproductive system. Epididymis is the accessory reproductive part where spermatozoa are stored until they are matured and capable of being motile.

10. Option a. menses

Explanation: Proliferative phase is characterized by increasing amounts of estrogen which causes endometrium to thicken and starts on day 5 of menstrual cycle. Follicular phase is characterized by increasing levels of estrogen and lasts from day 1-14 in menstrual cycle. Luteal phase is characterized by rise in progestrone and extends from days 15-28 of the menstrual cycle. Secretory phase coincides with luteal phase of ovarian cycle and represents 15-28 day of menstrual cycle.

11. Option b. seminiferous tubules, epididymus, vas deferens, ejaculatory duct, urethra

12. Option b. fat

Explanation: Colostrum has more protein, more antibodies (which provides passive immunity to the newborn), iron, sodium but virtually no fat

13. Option d. parasympathetic activity

Explanation: Erection or engorgement is under the influence of parasympathetic system while ejaculation or ovulation are under the influence of sympathetic system. Testosterone is only responsible for secondary se_xual characters and gender differentiation. Hypothalamus and cerebellar activity do not play a role in engorgement of erectile tissues

14. Option a. production of spermatozoa

Explanation: Spermatozoa are produced by testes which is a primary reproductive organ but not an accessory gland. Hence, option a is correct.

Accessory glands of male reproductive system are:

Seminal vesicles: Buffering acidic secretions, meets the nutrient needs of spermatozoa by providing fructose, propelling spermatozoa and fluids along the reproductive tract

Prostate gland: Activates spermatozoa,

Cowper's glands: propelling spermatozoa and fluids along the reproductive tract

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