Question 1

Which of the following statements are true of the vagina and vulva (Select all that apply)?
A)The vagina is also the birth canal.
B)The labia majora and minora cover the urethral and vaginal openings and prevent drying of their mucous membranes.
C)The clitoris is a sensory organ for sexual arousal.
D)The secretion of Bartholin's glands helps facilitate the movement of an ovum.

Accepted Answer

The vagina is also the birth canal and the labia majora and minora cover the urethral and vaginal openings and prevent drying of their mucous membranes. The clitoris is a sensory organ for sexual arousal. Bartholin's glands secrete mucus to facilitate sexual intercourse, but not the movement of an ovum.

Question 2

Which of the following statements are true of the menstrual cycle (Select all that apply)?
A)Menstruation is the loss of the functional layer of the endometrium.
B)The average menstrual cycle is 28 days,but may be shorter or longer.
C)The endometrium continues to grow during the luteal phase.
D)The permanent layer of the endometrium is the foundational layer.
E)The loss of the endometrium is stimulated by a decrease in FSh.
F)During the follicular phase,several ovarian follicles begin to develop.

Accepted Answer

A,B,C,F

Question 3

Which of the following statements are true of the reproductive hormones (Select all that apply)?
A)In men,LH stimulates meiosis in the testes.
B)In women,LH stimulates the release of a mature ovum from an ovarian follicle.
C)In women,both FSH and estrogen contribute to the growth and maturation of an ovarian follicle.
D)In both men and women,inhibin directly inhibits the secretion of testosterone and estrogen,respectively.
E)In women,the secretion of progesterone is stimulated by FSh.
F)In men,both FSH and testosterone contribute to the growth and maturation of sperm.

Accepted Answer

B) In women, LH (luteinizing hormone) stimulates the release of a mature ovum from an ovarian follicle.
C) In women, both FSH (follicle-stimulating hormone) and estrogen contribute to the growth and maturation of an ovarian follicle.
F) In men, both FSH and testosterone contribute to the growth and maturation of sperm. LH (not FSH) stimulates meiosis in the testes of men. Inhibin inhibits FSH secretion in both men and women, but in men it also inhibits the secretion of LH, not testosterone. Progesterone secretion is stimulated by LH, not FSH, in women.

Question 4

Which of the following statements are true of the testes and male reproductive ducts (Select all that apply)?
A)The testes are located in the scrotum because sperm development requires a temperature lower than 37oC.
B)The ductus deferens carries sperm to the ejaculatory duct on its side.
C)The epididymis passes through the inguinal canal and is the site of maturation of sperm.
D)The rete testis is a network formed by all the ducts of the seminiferous tubules.
E)The paired ejaculatory ducts empty sperm and secretions into the urethra.
F)The membranous urethra is surrounded by the external urethral sphincter.

Accepted Answer

The testes are located in the scrotum to maintain a temperature lower than body temperature, which is necessary for sperm development. The ductus deferens carries sperm to the ejaculatory duct. The rete testis is a network formed by the seminiferous tubules. The ejaculatory ducts empty into the urethra. The membranous urethra is surrounded by the external urethral sphincter. The epididymis is not the structure that passes through the inguinal canal; it is the ductus deferens.

Question 5

Which of the following statements are true of the mammary glands (Select all that apply)?
A)The lactiferous ducts converge at the nipple.
B)The lactiferous glands are cushioned by adipose tissue.
C)During pregnancy,both estrogen and progesterone contribute to the growth of the mammary glands in preparation for milk production.
D)After pregnancy,oxytocin from the anterior pituitary stimulates the release of milk.
E)Milk production is stimulated by prolactin from the posterior pituitary gland.
F)Besides nutrients,breast milk also contains antibodies that provide passive immunity for a newborn.

Accepted Answer

The answer of Which of the following statements are true...

Question 6

Which of the following statements are true of the male reproductive glands and penis (Select all that apply)?
A)The secretion of the bulbourethral glands lines the urethra just before ejaculation.
B)Erection of the penis is the result of vasodilation brought about by parasympathetic impulses.
C)The longest part of the urethra is within the prostate gland.
D)The seminal vesicles secrete glycogen as nourishment for sperm.
E)The striated muscle of the prostate gland contributes to ejaculation,which is a sympathetic response.
F)The secretions of the prostate gland contribute to the slight alkalinity of seminal fluid.

Accepted Answer

A) The bulbourethral glands secrete a fluid that lines the urethra just before ejaculation to neutralize any acidic urine that may be present.
B) Parasympathetic impulses cause vasodilation of the blood vessels in the penis, resulting in an erection.
C) The longest part of the urethra is actually in the penile shaft, not within the prostate gland.
D) The seminal vesicles secrete fructose, not glycogen, as a source of energy for sperm.
E) The striated muscle of the prostate gland does contribute to ejaculation, but it is actually a parasympathetic response (not sympathetic).
F) The secretions of the prostate gland are slightly alkaline (pH of around 7.5) which helps to neutralize the acidic environment of the vagina and improve sperm survival.

Question 7

Which of the following statements are true of the uterus (Select all that apply)?
A)Both estrogen and progesterone contribute to the growth of the endometrium.
B)Growth of the endometrium includes growth of blood vessels and storage of fatty acids as potential nutrients.
C)The smooth muscle of the myometrium contracts in response to oxytocin at the end of gestation.
D)The functional layer of the endometrium is permanent until menopause,when it is no longer needed.
E)The uterus is anterior to the urinary bladder and medial to the ovaries.
F)The cervix of the uterus opens into the vagina.

Accepted Answer

The answer of Which of the following statements are true...

Question 8

Which of the following statements are true of the ovaries and fallopian tubes (Select all that apply)?
A)The fallopian tubes are lined with cilia that sweep the ovum toward the uterus.
B)An ovum begins meiosis in an ovarian follicle.
C)The paired ovaries are lateral to the uterus and medial to the fallopian tubes.
D)The wall of a fallopian tube has striated muscle to keep an ovum moving.
E)Fertilization usually takes place in a fallopian tube. 
F)After it releases a mature ovum,an ovarian follicle becomes a temporary endocrine gland called the corpus luteum.

Accepted Answer

The fallopian tubes have cilia to help move the ovum (A). An ovum begins meiosis in an ovarian follicle (B). Fertilization typically occurs in the fallopian tube (E). After releasing an ovum, the follicle becomes the corpus luteum, a temporary endocrine gland (F). The ovaries are lateral to the uterus, not medial to the fallopian tubes (C), and the fallopian tubes have smooth muscle, not striated muscle (D).

Question 9

Which of the following statements are true of spermatogenesis or oogenesis (Select all that apply)?
A)Spermatogenesis produces four haploid cells for each cell that undergoes meiosis.
B)Oogenesis is a cyclical process and spermatogenesis is a continuous process.
C)Both processes begin at puberty and end between the ages of 45 and 55.
D)Both processes depend on hormones from the gonads and the posterior pituitary gland.
E)Oogenesis produces one haploid cell and three diploid cells for each cell that undergoes meiosis.
F)Both the ovaries and testes contain stem cells.

Accepted Answer

Spermatogenesis produces four haploid sperm cells per meiosis, while oogenesis produces one haploid ovum and polar bodies. Spermatogenesis is continuous, while oogenesis is cyclical. Both ovaries and testes have stem cells.

Question 10

Which of the following statements are true of sperm (Select all that apply)?
A)The chromosomes are with the mitochondria because they require ATP in order to divide.
B)The flagellum provides for movement,and is most efficient in a moderately acidic environment.
C)The acrosome contains enzymes to digest the membrane of an ovum.
D)Millions of sperm are contained in 1 mL of semen.

Accepted Answer

The acrosome of a sperm contains enzymes that help it penetrate the ovum's membrane. Millions of sperm are typically found in 1 mL of semen, which is necessary for successful fertilization.

Quiz 21:The Reproductive Systems-Part A

Which of the following statements are true of the vagina and vulva (Select all that apply) ?

Which of the following statements are true of the menstrual cycle (Select all that apply) ?

Which of the following statements are true of the reproductive hormones (Select all that apply) ?

Which of the following statements are true of the testes and male reproductive ducts (Select all that apply) ?

Which of the following statements are true of the mammary glands (Select all that apply) ?

Which of the following statements are true of the male reproductive glands and penis (Select all that apply) ?

Which of the following statements are true of the uterus (Select all that apply) ?

Which of the following statements are true of the ovaries and fallopian tubes (Select all that apply) ?

Which of the following statements are true of spermatogenesis or oogenesis (Select all that apply) ?

Which of the following statements are true of sperm (Select all that apply) ?