Chapter 26

Question 1

Egg and sperm cells have

Answer 1

23 chromosomes

Question 2

What is the main regulatory hormone responsible for regulation of gonad function

Answer 2

Gonadotropin-releasing hormone

Question 3

Uterus =

Answer 3

Müllerian duct

Question 4

Which statement most accurately describes how the gender of a human embryo is determined

Answer 4

Embryos with the SRY gene become male, those lacking the gene become female

Question 5

Meiosis of one cell results in production of

Answer 5

4 gametes if male, one if female

Question 6

Which of the following structures is the source of sperm

Answer 6

Seminiferous tubules

Question 7

What is the site of spermatogenesis in the testes

Answer 7

Seminiferous tubules

Question 8

The role of the pituitary hormone FSH in males is to

Answer 8

Initiate sperm production in the testes

Question 9

Which of the following hormones inhibits FSH secretion in the male

Answer 9

Inhibin

Question 10

The structure that transports the ovum to the uterus is the

Answer 10

Fallopian tube

Question 11

The surge in LH that occurs during the middle of the ovarian cycle triggers

Answer 11

Ovulation

Question 12

The principal hormone secreted by the corpus luteum is

Answer 12

Progesterone

Question 13

Which of the following is responsible for driving the female libido

Answer 13

Adrenal androgens

Question 14

Which of the following occurs during an erection

Answer 14

The parasympathetic nervous system dilates the arteries going into the penis

Question 15

Which of the following occurs during the excitement phase in the female during the human sexual response

Answer 15

Vaginal lubrication

Question 16

Birth control pills containing hormones estrogen and progesterone work by directly preventing

Answer 16

Ovulation

Question 17

Successful fertilization of an egg occurs in which of the following area

Answer 17

Successful fertilization normally occurs in the distal 2/3 of the uterine tube

Question 18

The hormone that is the basis for a pregnancy test is

Answer 18

Human chorionic gonadotropin (hCG)

Question 19

Order of events of fertilization and implantation occurs

Answer 19

1. The egg is fertilized by the sperm
2. The cortical reaction occurs, preventing polyspermy
3. Mitosis occurs in the Fallopian tubes
4. The developing embryo becomes a blastocyst which consists of a hollow ball of cells
5. Implantation of the developing embryo

Question 20

The hormone primarily responsible for the milk let-down reflex is

Answer 20

Oxytocin