mas pero en Ingles 2

Which of the following is true of the ductus deferens?

A) Its superior end, called the ampulla, connects to the epididymis.
B) Its inferior end connects to the ejaculatory duct.
C) It moves sperm toward the ejaculatory duct using cilia.
D) It can store sperm for a month or more.
E) It produces sperm.


Which of the following is NOT part of the spermatic cord?

A) ductus deferens
B) testicular artery
C) lymphatic vessels
D) autonomic nerves
E) dartos muscle


The male urethra

A) serves both reproductive and urinary functions.
B) consists of prostatic, membranous and penile (spongy) regions.
C) includes the ejaculatory duct.
D) A and B are correct.
E) A, B and C are correct.


Seminal vesicles

A) lie on the anterior side of the urinary bladder.
B) produce a fluid that contains acidic mucous.
C) produce a fluid containing fructose, which is used for ATP production by sperm.
D) produce a fluid containing prostaglandins, which cause semen to coagulate after ejaculation.
E) produce a fluid containing proteins, which inhibit sperm motility.


The prostate gland

A) surrounds the spongy urethra.
B) produces a fluid containing citric acid, which is used for ATP production.
C) produces a fluid with a highly alkaline pH.
D) produces a fluid containing enzymes that cause semen to coagulate after ejaculation.
E) decreases in size with age.

) The bulbourethral glands

A) secrete an alkaline mucous.
B) are about the size of pears.
C) are located superior to the prostate gland.
D) A and B are correct.
E) A, B and C are correct.

Which of the following is NOT true of semen?

A) A man is probably infertile if his sperm contains less than 20 million sperm/mL.
B) It contains sperm and seminal fluids.
C) It protects sperm from the hostile alkaline environment of the male urethra and female vagina.
D) It contains an antibiotic called seminal plasmin.
E) It provides sperm with a transportation medium and nutrients.

Oogenesis

A) begins after puberty.
B) is completed only after the secondary oocyte has been fertilized.
C) produces four viable secondary oocytes from each oogonium.
D) is inhibited by FSH.
E) produces diploid gametes.


Which of the following is NOT true of the uterus?

A) It serves as part of the pathway for sperm.
B) It is the site of implantation of a fertilized ovum.
C) It is the site development of the fetus during pregnancy.
D) It is uninvolved in labor.
E) It is the source of menstrual flow.


The uterus

A) lies between the sacrum and the rectum.
B) has a fundus below the openings of the uterine tubes.
C) has a cervix that opens into the vagina.
D) is usually retroflexed over the urinary bladder.
E) is supported by broad, cardinal, round and uterosacral tendons.


The endometrium

A) is the inner layer of the uterus.
B) has a layer called the stratum functionalis that sloughs off during menstruation.
C) has a layer called the stratum basalis that persists and gives rise to the stratum functionalis.
D) is highly vascular.
E) All of these are correct.


Cervical mucus

A) is more acidic and viscous at the time of ovulation.
B) contains phagocytes that destroy sperm.
C) can physically prevent sperm from entering the uterus.
D) A and B are correct.
E) A, B and C are correct.


The vagina

A) is the female gonad.
B) is the outlet for menstrual flow.
C) is lined with a serous membrane.
D) is blocked by a hymen at its superior end.
E) is anterior to the urethra.

The female reproductive cycle

A) includes the ovarian cycle.
B) includes the uterine cycle.
C) includes changes in the breast and cervix associated with the ovarian and uterine cycles.
D) includes the hormonal changes that accompany the ovarian and uterine cycles.
E) All of these are correct.


GnRH

A) is secreted by the posterior pituitary.
B) stimulates production and release of FSH from the anterior pituitary gland.
C) inhibits production and release of LH from the anterior pituitary gland.
D) A and B are correct.
E) A, B and C are correct.

LH

A) stimulates production of estrogens by ovarian follicles.
B) triggers ovulation.
C) stimulates secretion of estrogens, progesterone, relaxin, and inhibin by the corpus luteum.
D) A and B are correct.
E) A, B and C are correct.


Estrogens

A) promote the development and maintenance of ¬female reproductive structures.
B) relax the uterus by inhibiting contractions of the myometrium.
C) increase blood cholesterol levels.
D) decrease protein synthesis.
E) cause the endometrial lining to thin and be shed.

The preovulatory phase

A) is the least variable phase of the female reproductive cycle.
B) is the time when one dominant follicle becomes the mature (Graafian) follicle.
C) is accompanied by high estrogen levels in its first days and high FSH levels later.
D) is part of the secretory phase.
E) All of these are correct.

During the proliferative phase,

A) the cells of the stratum functionalis undergo mitosis.
B) the uterus produces a new stratum basalis.
C) the thickness of the endometrium nearly doubles.
D) A and B are correct.
E) A, B and C are correct.

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