Human Reproductive System: Sperm and Oocyte

Play an AI-generated podcast conversation about this lesson

How many chromosomes do chromosomes in one male gamete and one female gamete combine to form?

92
47
46 (correct)
23

What is the function of the dartos and cremaster muscles?

To regulate the temperature of the testes (correct)
To release sperm from the seminiferous tubules
To control the blood-testes barrier
To produce sperm in the seminiferous tubules

What is the covering of the testes called?

Tunica albuginea (correct)
Tunica vasculosa
Tunica adventitia
Tunica serosa

How many cell types are present in the seminiferous tubules?

6 (D) Signup and view all the answers

What is the function of Sertoli cells?

To control sperm production and germ cell survival (B) Signup and view all the answers

What would happen if the developing germ cell antigens entered the bloodstream?

An autoimmune response would occur (D) Signup and view all the answers

What is the process called when the germ cells develop into sperm cells?

Spermatogenesis (D) Signup and view all the answers

How many chromosomes do spermatogonia have?

46 (C) Signup and view all the answers

What is the term for when one or both testes fail to descend into the scrotum before birth?

Cryptorchidism (A) Signup and view all the answers

What is the energy source for the flagellum to move the sperm cell?

ATP (A) Signup and view all the answers

What is the percentage of semen that is made up of sperm?

5% (D) Signup and view all the answers

What is the role of the prostate in semen?

Add fluid to coagulate the semen (D) Signup and view all the answers

What is the name of the hormone that regulates testosterone production?

Gonadotropin releasing hormone (GRH) (B) Signup and view all the answers

What is the term for the external female reproductive area?

Vulva (A) Signup and view all the answers

What is the function of the labia minora?

Protect the urethra and female reproductive system (B) Signup and view all the answers

What is the structure that comes from the same cells as the glans penis?

Clitoris (D) Signup and view all the answers

What happens to the corpus luteum if pregnancy does not occur within 10-12 days?

It degrades and progesterone decreases (A) Signup and view all the answers

What is the function of the mammary glands in lactation?

To produce breast milk (C) Signup and view all the answers

Why does hormonal birth control prevent pregnancy?

It supplies a constant amount of estrogen and progesterone (D) Signup and view all the answers

What is the typical age range for puberty in females?

Age 9-11 (C) Signup and view all the answers

What is the role of the Y chromosome in sex determination?

It is necessary for the development of the male reproductive system (C) Signup and view all the answers

What is the effect of poor nutrition on puberty in females?

It accelerates puberty (B) Signup and view all the answers

What is the function of the natural microorganisms in the vagina?

To protect from pathogens (B) Signup and view all the answers

What is the approximate length of the ovarian cycle?

28 days (B) Signup and view all the answers

What is the term for the process by which an oocyte develops in the cortex of the ovaries?

Oogenesis (B) Signup and view all the answers

What is the fate of the 3 smaller cells that split from the oocyte during meiosis?

They disintegrate eventually (C) Signup and view all the answers

What is the source of mitochondrial DNA in the offspring?

The mother (A) Signup and view all the answers

What is the term for the death of multiple follicles during the ovarian cycle?

Atresia (A) Signup and view all the answers

Which hormone triggers the LH surge in the ovarian cycle?

Estrogen (C) Signup and view all the answers

What is the function of the cilia in the uterine tubes?

To produce a current for the oocyte to travel to the uterus (C) Signup and view all the answers

What is the term for the phase of the menstrual cycle where the lining is shed?

Menses phase (B) Signup and view all the answers

What is the purpose of the fluid in the secretory phase of the menstrual cycle?

To provide nutrients for the zygote (B) Signup and view all the answers