WileyPlus Ch.28 (Final) – Flashcards
Unlock all answers in this set
Unlock answersquestion
Which structure is the site of sperm production?
answer
Seminiferous tubules
question
Which of the following cells may eventually become spermatozoa?
answer
Spermatogonia
question
Which cells secrete testosterone?
answer
Leydig cells
question
The function of the epididymis is
answer
Sperm maturation
question
Which structure lies posterior to the bladder and anterior to the rectum and secretes an alkaline, fructose filled fluid?
answer
Seminal vesicles
question
What is produced by the ovaries?
answer
Secondary oocytes, estrogen and progesterone
question
Which of the following is the site of fertilization?
answer
Uterine tubes
question
Which hormone triggers ovulation?
answer
LH
question
The uterine phase where the thickness of the endometrium doubles is the
answer
Proliferative phase
question
The ovarian phase between the end of menstruation and beginning of ovulation is the
answer
Preovulatory phase
question
Trace the path of a sperm cell from the site of its maturation to the site where it leaves the male body. Include descriptions of fluids added along that path.
answer
Sperm mature in the epididymis. From there, they travel through the ductus (Vas) deferens through the abdominal cavity to the ampulla of the ductus deferens which merges with the duct of the seminal vesicle to form the ejaculatory duct. Sperm and the alkaline, fructose-rich fluid from the seminal vesicle move from the ejaculatory duct into the prostatic urethra, where they are mixed with a slightly acidic mucoid fluid from the prostate. Next the sperm and fluid pass through the membranous urethra and are mixed with additional alkaline secretions from the bulbourethral glands. The combination of sperm and secretions is called semen. The mixture travels through the penile urethra as it is ejaculated.
question
Describe the functions of testosterone.
answer
Testosterone promotes the development and maintenance of male secondary sex characteristics, protein anabolism, development of sexual function (behavior, libido, spermatogenesis), and the male pattern of development during prenatal life.
question
Describe the roles of estrogens and progesterone.
answer
Estrogens secreted by ovarian follicles have several important functions:
• Estrogens promote the development and maintenance of female reproductive structures, secondary sex characteristics, and the breasts. The secondary sex characteristics include distribution of adipose tissue in the breasts, abdomen, mons pubis, and hips; voice pitch; a broad pelvis; and pattern of hair growth on the head and body.
• Estrogens increase protein anabolism, including the building of strong bones. In this regard, estrogens are synergistic with human growth hormone (hGH).
• Estrogens lower blood cholesterol level, which is probably the reason that women under age 50 have a much lower risk of coronary artery disease than do men of comparable age.
• Moderate levels of estrogens in the blood inhibit both the release of GnRH by the hypothalamus and secretion of LH and FSH by the anterior pituitary. Progesterone, secreted mainly by cells of the corpus luteum, cooperates with estrogens to prepare and maintain the endometrium for implantation of a fertilized ovum and to prepare the mammary glands for milk secretion. High levels of progesterone also inhibit secretion of GnRH and LH.
question
The male reproductive system arises from
answer
Mesonephric (Wolffian) ducts
question
Female reproductive system arises from
answer
Paramesonephric (Mullerian) ducts
question
During fetal development which cells give rise to primary oocytes?
answer
Oogonia
question
Which hormone inhibits the release of FSH from the pituitary gland?
answer
Inhibin
question
In male embryos, which hormone is responsible for the development of the urethra, prostate, and external genitals?
answer
Dihydrosestosterone
question
Which of the following is a fungal disease of the reproductive system?
answer
Candidiasis
question
Which of the following is NOT a sexually transmitted disease?
Syphilis
Gonorrhea
Genital Herpes
Genital Warts
answer
All of these are sexually transmitted diseases
question
Which of the following is not a contribution of the reproductive system to the body systems?
Lowering blood cholesterol level in males under the age of 50
Stimulating the growth of skeletal muscles in males
Stimulation of growth and maintenance of bones of the skeletal system
Increasing the rate and depth of breathing during sexual arousal
Exert feedback effects on the hypothalamus and anterior pituitary gland
answer
Lowering blood cholesterol level in males under the age of 50
question
Which of the following is the male pattern of development "master switch" gene?
answer
SRY
