11.
The function of FSH in the male is to a. stimulate production of testosterone.
b. stimulate production of sperm. c. inhibit release of testosterone from the testes.
d. FSH has no function in the male, only in the female.
12. The organ responsible for producing estrogen is labeled
a. A. b. B.
c. C. d. D.
16.
The layer of the uterus that repeatedly thickens and sheds un- der hormonal control is the
a. endometrium. b. perimetrium.
c. myometrium.
17. The mammary glands release milk the “let down” reflex in re-
sponse to the hormone a. prolactin.
b. oxytocin. c. estrogen.
d. progesterone.
18. The hormone responsible for proliferation of the uterine lining
comes from a. the hypothalamus.
b. the anterior pituitary gland. c. secondary and mature follicles.
d. the corpus luteum.
Self Test 551
1.
What type of cells is produced from meiosis? a. Diploid body cells
b. Haploid body cells c. Diploid gametes
d. Haploid gametes
6.
The function of the structure shown in this figure is a. spermatid production.
b. testosterone production. c. inhibin production.
d. Both a and b are correct.
SELF TEST
550 CHAPTER 16
The Reproductive Systems: Maintaining the Species
A A
B B
B B
B b
B b
a a
b b
a a
G G
G G
g g
A A
a a
G G g
g g
g b
b A
A
C B
A D
D C
B A
A
Uterine menstrual cycle
Stratum functionalis
Stratum basalis
M en
str ua
tio n
Men str
u a
tio n
1 2
2 3
4 5
6 7
8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 1
Days Menstrual
phase Preovulatory
phase Ovulation
Postovulatory phase
Ovarian cycle GnRH
Follicular phase Luteal phase
Primary follicles
Secondary follicle
Mature graafian
follicle Ovulation
Corpus luteum Corpus
albicans Hypothalamus
Anterior pituitary
Estrogens Prolife
rati ve
pha se
Sec retor
y ph ase
Primordial follicles
Progesterone and estrogens
Hormonal regulation of changes in the ovary and uterus LH
FSH Corpus
hemor- rhagicum
2. What is the significance of the crossing over shown above?
a. It increases genetic variation. b. It reduces birth defects.
c. It ensures reproductive success. d. It is necessary to the orderly separation of chromosomes.
3. True or false: In both males and females, four gametes are pro-
