The function of the pampiniform plexus is to cool the arterial blood flowing to the testes. produce erection and ejaculation. propel sperm and seminal fluid through the spermatic cord. prevent inguinal hernia
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The function of the pampiniform plexus is to cool the arterial blood flowing to the testes. produce erection and ejaculation. propel sperm and seminal fluid through the spermatic cord. prevent inguinal hernias.
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- Figure 43.15 Which of the following statements about hormone regulation of the female reproductive cycle is false? LH and FSH are produced in the pituitary, and estradiol and progesterone are produced in the ovaries. Estradiol and progesterone secreted from the corpus luteum cause the endometrium to thicken. Both progesterone and estradiol are produced by the follicles. Secretion of GnRH by the hypothalamus is inhibited by low levels of estradiol but stimulated by high levels of estradiol.Figure 43.8 Which of the following statements about the male reproductive system is false? The vas deferens carries sperm from the testes to the penis. Sperm mature in seminiferous tubules in the testes. Both the prostate and the bulbourethral glands produce components of the semen. The prostate gland is located in the testes.Figure 43.17 Which of the following statements about the menstrual cycle is false? Progesterone levels rise during the luteal phase of the ovarian cycle and the secretory phase of the uterine cycle. Menstruation occurs just after LH and FSH levels peak. Menstruation occurs after progesterone levels drop. Estrogen levels rise before ovulation, while progesterone levels rise after.
- Ovulation releases _________. a. the corpus luteum b. a primordial follicle c. a primary oocyte d. a secondary oocyte and first polar bodyBesides producing gametes (sperm and eggs), the primary male and female reproductive organs also produce sex hormones. The _____ and the pituitary gland control secretion of both.TRUE OR FALSE Sympathetic stimulation of the arteries within the penis causes engorgement of the erectile tissue as arterial flow increases and venous drainage decreases. Mammary glands are modified sudoriferous glands. Prolactin causes the breasts to enlarge and the mammary glands to mature during puberty. Secretions from the vestibular glands moisten and lubricate the vaginal orifice during sexual arousal. 20. The secretory phase of menstruation is from the time of ovulation until the start of the menstrual phase.
- Spermatogenesis is cyclic and exhibits spermatogenic wave inside the seminiferous tubules. Which of the following factor contribute to the spermatogenic cycle/wave? Retinoic acid signaling in the testis. AR levels in Sertoli cells. Activin and inhibin levels within the seminiferous tubule. Androgen receptor (AR) levels in Leydig and peritubular cells. Testosterone levels in the lumen of the seminiferous tubules.Which of the following correctly describes the function of the dartos muscle and cremaster muscles of the scrotum? Descend the testes in cold weather (or water), thus increasing the surface area of the scrotum to retain heat. Elevate the testes in cold weather (or water), thus increasing the surface area of the scrotum to retain heat. Descend the testes in cold weather (or water), thus decreasing the surface area of the scrotum to retain heat. Elevate the testes in cold weather (or water), thus decreasing the surface area of the scrotum to retain heat.Choose the correct order for the path of sperm from the testes to outside the body. O ductus deferens - epididymis - ejaculatory duct - penis O epididymis - ejaculatory duct - penis- ductus deferens epididymis- ductus deferens- ejaculatory duct - penis ductus deferens - ejaculatory duct-penis-epididymis.
- An inability to contract the ischiocavernosus and bulbospongiosus muscles would interfere with which part of the sexual response in males?T or F: The glans penis and the clitoris are always covered by a prepuce. The ovaries and the uterus are the primary female sex organs. Ejaculation is the discharge of semen from the erect penis. The labia minora of the female genitalia are homologous to the body of the penis Meiosis is unique to the gonads. Sympathetic stimulation of the arteries within the penis causes engorgement of the erectile tissue as arterial flow increases and venous drainage decreases. Mammary glands are modified sudoriferous glands. Prolactin causes the breasts to enlarge and the mammary glands to mature during puberty. Secretions from the vestibular glands moisten and lubricate the vaginal orifice during sexual arousal. 20. The secretory phase of menstruation is from the time of ovulation until the start of the menstrual phase.Females secrete Follicle Stimulating Hormone to develop the dominant follicle in ovaries. Since males do not have ovaries, males use testoterone to stimulate leydig cells for spermtogenesis. true false
