To discuss:
The ways in which the female sexual response varies from the male’s sexual response in the excitement phase; vasocongestion of the labia, clitoris, and breasts; lubrication source of the vagina and vulva; changes in the vagina and uterus anatomy during sexual arousal.
Introduction:
The female sexual response and the anatomical changes that happen at the time of coitus can be seen in four stages: excitement, plateau, orgasm, and resolution. The vascular regulation and neurological regulation of female sexual response are fundamentally similar to those observed in males.
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Chapter 28 Solutions
LSC (CONCORDIA UNIV ST PAUL) BIO 315/316: B&N DPF Connect with APR and Phils Online Access for Anatomy and Physiology: The Unity of Form and Function 180 Day Access ENTRP
- 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.arrow_forwardWhich of the following is true regarding the determinants of sexual development: the presence of the gene for HY antigen on the Y chromosome determines whether a testis develops from the gonadal ridge. the presence of MIS determines whether the Wolffian ducts develop. the presence of estrogen determines whether a vagina develops. the presence of DHT determines whether a prostate develops.arrow_forwardSpermatogenesis 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.arrow_forward
- True or False 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.arrow_forwardWhich of these is inconsistent with the erection of the penis? Compression of veins Sympathetic stimulation Dilation of arterioles Engorgement of sinusoids with bloodarrow_forwardT 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.arrow_forward
- Which of the following statements is NOT true concerning the hormonal control over the male reproductive system? These hormones are involved in a negative feedback relationship The hypothalamus secretes a hormone called gonadotropin-releasing hormone Luteinizing hormone controls the production of sperm in the seminiferous tubules Follicle-stimulating hormone and luteinizing hormone are present in both males and females The interstitial cells produce testosteronearrow_forwardTRUE 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.arrow_forwardTrue or false A corpus luteum is present during the follicular phase The corpus luteum secretes estrogen and progesteronearrow_forward
- The sex response is an inborn reflex. What stimuli trigger the reflex? What two physiological mechanisms (other than the brain) are responsible for the physical changes that appear during the sexual response? [Hint: One begins with “va” and the other with “my.”] Give examples of the effects of both these two physiological mechanisms.arrow_forwardWhich of the following is LEAST LIKELY a function of the male reproductive system? Production of male sex hormones Nurturing the development of and providing nourishment for the new individual Sustaining and transfer of the sperm cells to the female Production of male sex cells, or sperm cells, in the testesarrow_forwardSexual arousal results in a generally positive sympathetic response, e.g. increased heart rate, increased breathing rate and depth, etc. How is it, then, that erection can occur if sympathetic activity causes vasoconstriction and prevents blood flow into the vascular spaces of the penis?arrow_forward
- Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxNutrition Through The Life CycleHealth & NutritionISBN:9781337919333Author:Brown, Judith E.Publisher:Cengage Learning,Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
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