Chapter
28
Practice
Quiz
1. T F Haploid cell always contain 23 chromosomes in humans.
2. T F Haploidy occurs at meiosis I
3. T F Crossing over is the swapping of DNA among homologous chromosomes.
4. T F Another name for Sertoli cells is sustentacular cells that help to form the blood-testi barrier.
5. T F Sperm must spend 4 weeks in the epididymis to reach capacitance.
6. T F Crytorchidism is 30% more likely in premature boys.
7. T F Primary spermatocytes are haploid.
8. T F The acrosome contains hyaluronidase to penetrate the ovum's corona radiata.
9. T F Spermatogenesis is inhibited by inhibin released by Sertoli cells to reduce FSH secretion.
10. T F Spermatogenesis occurs best at temperatures 3 degrees above body temperature.
11. Testosterone is held
in the testis by:
a. FSH
b. LH
c. DHT
d. GH
e. ABP
12. The number of lobules
in each testis is:
a. 10
b. 20
c. 100
d. over 200
e. none of the above
13. The segment of the male
plumbing containing stereocilia is:
a. testis
b. epididymis
c. ductus deferens
d. spermatic cord
e. ejaculatory duct
14. The seminal vesicles
secrete_____% of the semen.
a. 5
b. 10
c. 20
d. 30
e. 60
15. The prostate gland secretes:
a. citric acid
b. acid phosphatase
c. lysosome
d. hyaluronidase
e. all of the above
16. The uterus attachment(s)
that is (are) an extension of the parietal peritoneum is (are) the:
a. broad ligament
b. ovarian ligament
c. suspensory ligament
d. all of the above
e. none of the above
17. The area of the ovary
containing the follicles is the:
a. germinal epithelium
b. tunica albuginea
c. cortex
d. medulla
e. none of the above
18 The number of primary
oocytes that make it to puberty is:
a. 2,000,000
b. 200,000
c. 40,000
d. 4,000
e. 400
19. The cells that are diploid
are:
a. oogonia
b. primary oocytes
c. secondary oocytes
d. a and b
e. b and c