Oogenesis and Female Reproductive Cycle

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What is the primary function of corpus luteum?

Regulating the LH Surge

Releasing the oocyte during ovulation

Forming the Graafian follicle

Secreting estrogen and progesterone (correct)

What triggers the completion of Meiosis II?

Increased estrogen secretion

The entry of sperm (correct)

Formation of corpus luteum

LH Surge

What happens to the corpus luteum in a non-pregnant cycle?

It triggers the LH Surge

It continues to secrete estrogen and progesterone

It becomes the Graafian follicle

It degenerates after 10 days (correct)

What is the primary function of estrogen during the follicular phase?

Causing the proliferative phase of the uterine cycle (D) Signup and view all the answers

What is the primary factor that stimulates the development of follicles at puberty?

FSH (B) Signup and view all the answers

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

15-28 days (D) Signup and view all the answers

What hormone is secreted by the corpus luteum in addition to progesterone?

Estrogen (D) Signup and view all the answers

During which phase of the uterine cycle does the functional zone of the uterine endometrium become necrotic and is sloughed as menses?

Menstrual phase (A) Signup and view all the answers

What is the primary function of the basal zone of the uterine endometrium?

To regenerate the functional zone (B) Signup and view all the answers

What is responsible for the increase in thickness of the endometrium during the secretory phase?

Progesterone (D) Signup and view all the answers

During which days of the uterine cycle does the functional zone of the uterine endometrium regenerate from the basal zone?

Days 5-14 (D) Signup and view all the answers

What is the primary source of estrogen in the female circulation?

The ovaries (A) Signup and view all the answers

What is the primary function of the epididymis in the male reproductive system?

Storage, protection, and maturation of sperm cells (A) Signup and view all the answers

Which hormone stimulates the secretion of testosterone in Leydig cells?

Luteinizing hormone (LH) (C) Signup and view all the answers

What is the function of the bulbourethral gland (Cowper's gland) in the male reproductive system?

Secretion of mucus that acts as a lubricant (C) Signup and view all the answers

What is the role of the hypothalamic-pituitary-gonadal axis in males?

Control of the secretion of male hormones (C) Signup and view all the answers

What is the primary function of the prostate gland in the male reproductive system?

Secretion of a milky fluid containing citric acid and fibrinolysin (B) Signup and view all the answers

What is the primary function of the scrotum in the male reproductive system?

Covers and protects the testes and holds them outside the body (A) Signup and view all the answers

What stimulates the maturation of sperms by Sertoli cells?

FSH (B) Signup and view all the answers

At what stage do sperms acquire motility?

In the epididymis (C) Signup and view all the answers

What is the main function of the blood-testis barrier?

To prevent the entry of harmful substances from blood into the testes (C) Signup and view all the answers

Which vitamin is essential for normal spermatogenesis?

Vitamin A (B) Signup and view all the answers

What is the optimal temperature for spermatogenesis to occur?

32-34°C (D) Signup and view all the answers

What is the result of prolonged exposure to radiation, O2 lack, bacterial and chemical toxins on spermatogenesis?

Depression of spermatogenesis (D) Signup and view all the answers

What is the function of FSH in relation to Leydig cells?

To increase the response of Leydig cells to LH (C) Signup and view all the answers

What is the role of testosterone in spermatogenesis?

To complete meiosis and spermiogenesis (A) Signup and view all the answers

Which of the following is a secondary sex characteristic influenced by testosterone?

Larynx development (D) Signup and view all the answers

What is the effect of testosterone on behavior?

It enhances aggressive behavior (B) Signup and view all the answers

What is the function of Sertoli cells in relation to sperm?

To prevent autoimmune destruction of sperm (C) Signup and view all the answers