Human Reproductive System

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What is the primary function of the cilia in the uterine tube?

To facilitate the passage of sperm towards the ovum

To regulate the hormonal balance in the uterus

To move the ovum towards the uterus (correct)

To produce nutrients for the embryo

What is the result of the fermentation of glycogen by bacteria in the vagina?

A decrease in the production of progesterone

An increase in the production of estrogen

An increase in vaginal pH

A decrease in vaginal pH (correct)

What is the purpose of the polar body produced during oogenesis?

To serve as a backup for the egg in case of fertilization failure

To regulate the hormonal balance in the uterus

To produce nutrients for the embryo

To act as a dumping ground for the extra set of chromosomes (correct)

What is the process by which most primary oocytes undergo degeneration?

Atresia (B) Signup and view all the answers

What is the stage of oogenesis at which the secondary oocyte arrests until ovulation?

Metaphase II (A) Signup and view all the answers

What is the average age range for menopause in women?

45-55 years (D) Signup and view all the answers

What is the primary function of the cervical mucus during ovulation?

To facilitate the passage of the ovulated egg into the tube (A) Signup and view all the answers

What happens to the spiral arteries in the uterus if pregnancy does not occur during the secretory phase?

They close due to continuous and intensive constriction (A) Signup and view all the answers

What is the outcome of the union of the egg's chromosomes with those of the sperm?

A zygote is produced (B) Signup and view all the answers

What is the timeframe for an oocyte to be fertilized?

24 hours (A) Signup and view all the answers

What is the primary function of granulosa cells during the follicular phase?

To secrete an estrogen-rich follicular fluid (A) Signup and view all the answers

What is the response of the endometrium to rising levels of progesterone during the secretory phase?

It proliferates further in preparation for possible pregnancy (B) Signup and view all the answers

What triggers ovulation in the ovarian cycle?

A sudden burstlike release of LH secretion (C) Signup and view all the answers

What is the primary function of uterine glands during the secretory phase?

To secrete nutrients into the uterine cavity (B) Signup and view all the answers

What is the period during which the follicular cells around the oocyte develop into granulosa cells?

Follicular phase (A) Signup and view all the answers

What is the primary reason for the decline in progesterone levels towards the end of the secretory phase?

Negative feedback of high levels of progesterone (D) Signup and view all the answers

What is the name of the hormonal feedback mechanism that triggers the LH surge?

Positive feedback loop (C) Signup and view all the answers

What is the duration of the follicular phase in the ovarian cycle?

14 days (B) Signup and view all the answers