Question 1

Which of the following best describes the function of the corpus luteum in the ovarian cycle?

Accepted Answer

It produces large amounts of estrogen and progesterone to maintain the uterine lining for possible implantation.

Question 2

During which phase of meiosis does crossing over occur, and what is its significance?

Accepted Answer

Prophase I; it increases genetic diversity by exchanging genetic material between homologous chromosomes.

Question 3

A patient presents with a tubal pregnancy. Which anatomical region is most likely involved in the implantation of the embryo?

Accepted Answer

Ampulla of the uterine tube

Question 4

Which hormone is primarily responsible for triggering ovulation, and what is the mechanism?

Accepted Answer

Luteinizing hormone (LH); a surge in LH causes the mature follicle to rupture and release the secondary oocyte.

Question 5

Which structure in the female reproductive system is homologous to the male scrotum?

Accepted Answer

Labia majora

Question 6

A genetic disorder results in a zygote with 47 chromosomes due to nondisjunction. What is the most likely outcome?

Accepted Answer

Trisomy, such as Down syndrome, where there are three copies of one chromosome.

Question 7

Which of the following best explains why only one secondary oocyte is typically released during each ovarian cycle?

Accepted Answer

Inhibin released by granulosa cells inhibits FSH, preventing excessive follicle development.

Question 8

Which layer of the uterine wall is shed during menstruation, and what hormone drop triggers this event?

Accepted Answer

The functional layer of the endometrium; triggered by a drop in progesterone.

Question 9

Which ligament attaches the ovary to the lateral pelvic wall and contains the ovarian blood vessels?

Accepted Answer

Suspensory ligament

Question 10

Which of the following equations correctly represents the chromosome number in a human diploid cell and a human gamete?

Accepted Answer

$$2n = 46$$ for diploid cells; $$n = 23$$ for gametes

Question 11

A woman is experiencing irregular menstrual cycles and hot flashes at age 50. Which physiological process is most likely occurring?

Accepted Answer

Menopause, due to the cessation of ovarian follicle maturation and decreased estrogen/progesterone production.

Question 12

Which of the following best describes the role of the zona pellucida in oogenesis?

Accepted Answer

It is a glycoprotein-rich layer that surrounds the oocyte and is involved in sperm binding during fertilization.

Question 13

Which of the following events occurs during the secretory phase of the uterine cycle?

Accepted Answer

Increased progesterone secretion from the corpus luteum leads to increased vascularization and gland development in the endometrium.

Question 14

Which anatomical structure forms the boundary between the urogenital and anal triangles in the perineum?

Accepted Answer

An imaginary horizontal line between the ischial tuberosities

Question 15

Which hormone is responsible for milk ejection during lactation, and where is it produced?

Accepted Answer

Oxytocin; produced by the hypothalamus and released from the posterior pituitary

Question 16

Which of the following is a correct sequence of follicular development in the ovary?

Accepted Answer

Primordial follicle → Primary follicle → Secondary follicle → Antral follicle → Mature follicle → Corpus luteum → Corpus albicans

Comprehensive Study Notes: The Reproductive System (ANP College Level)

Study Guide - Practice Questions