Reproductive System 6-10

Where is testosterone produced?

Testosterone is produced by interstitial cells in the testes.

What are the effects of testosterone?

Growth spurts, maturation of reproductive organs, increased sex drive, and secondary sexual characteristics like facial hair and a deeper voice.

What are the parts of the female external genitalia?

Mons pubis, labia majora, labia minora, clitoris, urethral orifice, vaginal orifice, and vestibular glands.

Trace the vagina internally.

Cervix → Uterus → Fallopian tubes → Ovaries.

What are the functions of the vagina?

It’s the birth canal, passageway for menstrual flow, and the female organ of copulation.

What is the function of the fallopian tubes?

They deliver eggs to the uterus; fimbriae guide the egg into the tube.

What is the uterus and its parts?

It’s a hollow organ that receives and nourishes a fertilized egg. Parts: cervix, body, and fundus.

What are the layers of the uterine wall?

Perimetrium (outer), myometrium (muscle), endometrium (inner lining that sheds monthly).

What do ovaries do?

They produce oocytes (eggs), release them during ovulation, and make estrogen and progesterone.

What happens during fertilization?

A sperm cell and egg join to form a zygote with 46 chromosomes.

When is the endometrium receptive to fertilized eggs?

During ovulation, for a short window.

What does the menstrual cycle represent?

Hormone-driven changes in the endometrium lining.

What are the three uterine cycle phases?

Menstrual (shedding), proliferative (rebuilding), secretory (preparing for embryo).