Question 1

Which of the following statements best explains why the testes are located outside the body cavity in the scrotum?

Accepted Answer

To maintain a temperature lower than body temperature, which is optimal for sperm production

Question 2

During meiosis I in gamete formation, which of the following events occurs?

Accepted Answer

Homologous chromosomes separate into two different cells

Question 3

A spermatozoon is characterized by all of the following EXCEPT:

Accepted Answer

A nucleus with 46 chromosomes

Question 4

Which hormone is primarily responsible for stimulating the production of testosterone in the testes?

Accepted Answer

Luteinizing Hormone (LH)

Question 5

If a cell has 46 chromosomes and undergoes meiosis, how many chromosomes will each resulting gamete have?

Accepted Answer

23

Question 6

Which of the following best describes the process by which sperm mature and gain motility?

Accepted Answer

Sperm mature in the epididymis, where they gain motility

Question 7

Which structure is homologous to the labia majora in males?

Accepted Answer

Scrotum

Question 8

During the ovarian cycle, ovulation typically occurs on which day?

Accepted Answer

Day 14

Question 9

Which of the following is TRUE regarding the menstrual phase of the uterine cycle?

Accepted Answer

It is characterized by the shedding of the functional layer of the endometrium

Question 10

A patient has a genetic disorder resulting in the failure of homologous chromosomes to separate during meiosis I. What is the most likely consequence?

Accepted Answer

Gametes will have an abnormal number of chromosomes, leading to aneuploidy

Question 11

Which of the following equations correctly represents the chromosome number in human gametes after meiosis?

Accepted Answer

$$n = 23$$

Question 12

Which of the following is NOT a function of the prostate gland?

Accepted Answer

Producing eggs for fertilization

Question 13

Which phase of the uterine cycle is characterized by the rebuilding of the functional layer of the endometrium?

Accepted Answer

Proliferative phase

Question 14

Which of the following best describes the role of the epididymis?

Accepted Answer

It stores and matures sperm

Question 15

A patient presents with infertility due to a lack of enzymes in the sperm head. Which structure is most likely defective?

Accepted Answer

Acrosome

Question 16

Which of the following statements about oogenesis is correct?

Accepted Answer

Oocytes are arrested in primordial follicles before undergoing further development

Question 17

Which of the following best explains why counter-current heat exchange is important in the testes?

Accepted Answer

It maintains the temperature of the testes lower than body temperature, which is necessary for sperm production

Question 18

Which of the following is TRUE regarding the chromosome number in somatic cells and gametes?

Accepted Answer

Gametes have half the number of chromosomes as somatic cells

Question 19

Which of the following is a result of a parasympathetic reflex in the male reproductive system?

Accepted Answer

Erection

Question 20

Which of the following best describes the fate of the corpus luteum if fertilization does NOT occur?

Accepted Answer

It degenerates, leading to a decrease in ovarian cycle hormones

The Reproductive System: Structure, Function, and Gametogenesis

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