The testicles are protected by the

Semen is found in

When the penis suddenly gets hard and enlarged, it is_______

The two passage ways that lead from the testicle into the seminal vesicle are _____________

The seminal vesicle is ___________________.

What is testosterone?

Of the following male organs, which one is considered a primary sex organ?

The _______ are the site of sperm maturation, sperm storage and conveyance of spermatozoa to the vas deferens.

The________ are the first haploid cells during the process of spermatogenesis

What is spermatogenesis?

The function of the _______________ is to support the testes and maintain a temperature around 35 degrees Celsius.

A sperm cell is a gamete containing _____________

The hypothalamus regulates the secretion of male sex hormone by releasing ________

The _____________ is a common passageway for both sperm and urine in males.

The ________ is located beneath the prostate gland.

Pituitary gland controls the production of sperm cells and testosterone by secreting _________

Luteinizing hormone ______________

FSH is _____________

When testosterone levels in the blood increase, _________

________________ give sperm cells energy to help them move.