Male Reproductive System

Sperm-forming tubules

seminiferous tubules

Ejaculation

sympathetic

Erection

parasympathetic

Carries the testicular blood vessels, nerves, lymphatics, and the ductus deferens

C

All of the following are secondary male sexual characteristics EXCEPT:

Stimulate production of watery cervical mucus and activity of fimbriae and uterine tube cilia

The organ responsible for producing the gametes

V

Produces the majority of the volume of semen and contributes fructose to provide energy for sperm

A

Surrounds the urethra at the base of the bladder; produces a milky fluid

D

Site of testosterone production

V

Tubular storage site for sperm; hugs the lateral aspect of the testes

T

Produces a lubricating mucous that cleanses the urethra

E

tubular structure in which sperm mature and become motile

T

Dorsal erectile tissue

N

This carries the testicular blood vessels, nerves, lymphatics, and the ductus deferens

C

Bands of skeletal muscle that elevate testes, located at  E

cremaster

Two surprising locations that these supportive ligaments connect the penis to the rest of the body are

the pubic symphysis and the linea alba

The seminiferous tubules are at

L

The spermatic cord is at

A

The ductus deferens is at

C

The epididymis is at

C

What part of the sperm releases hydrolytic enzymes that allow it to penetrate the layers of the egg?

the acrosome in the head

What triggers the sperm to move harder and faster toward the egg?

chemicals in the female tract trigger a change in the head of the sperm and they start swimming faster

The type of cells that support the growth and develop and meiotic cell divisions of "baby sperm cells" are called

Sertoli cells

The two muscles that we learned in this pelvic floor which help anchor the penis to the pelvic bone and support an erection are called

ischiocavernosum and bulbospongiosus

The seminal vesicles (at D)

contribute about 65-70% of the volume of semen, rich in fructose and prostaglandins

The bulbourethral glands (at J)

produce a thick clear mucous; neutralizes traces of acidic urine in urethra

Which of the following is NOT one of the 3 glands that contribute to semen?

epididymis

If you were to cut open the spermatic cord in the inguinal canal, what would you find? Mark all that apply.

cremaster muscle

ductus deferens

arteries, veins, nerves, and lymphatics

Why can't urine and semen exit the body at the same time?

because the sphincters of the bladder will automatically close to prevent urine exiting the bladder during ejaculation

B

C

C

A

A

C

A

Which of these labeled organs transports arterial blood to the kidney?

B

Which of these labeled organs maintains water and electrolyte balance of the blood?

D

Name the region of the sperm cell that contains hydrolytic enzymes that will penetrate the egg in an effort to fertilize it.

acrosome

The hormone produced by the Interstitial cells of Leydig is

testosterone

The interstitial cells of Leydig are seen at

D

Spermatogonia undergo ____ until a boy hits puberty and then each daughter cell (primary spermatocyte will undergo _______.

mitosis; meiosis

The type of cells that support the growth and develop and meiotic cell divisions of "baby sperm cells" are called

Sertoli cells

region of the sperm cell that contains hydrolytic enzymes that will penetrate the egg in an effort to fertilize it

acrosome of the head

Follicle Stimulating Hormone (FSH) acts on ____ cells to release ABP to sustain spermatogenesis.

Sertoli cells

Luteinizing hormone (LH) acts on __ cells to release testosterone.

interstitial cells of Leydig

All of the following are effects of testosterone except:

ovulation

How many autosomes (regular body chromosomes) in one sperm cell?

22

Where else in the body do we find flagella?

no place else in the body!

How many sex chromosomes in one sperm cell?

1

The spermatogonia will undergo _______ because they are the stem cells and always make copies of themselves.

mitosis

A primary spermatocyte is identical to the stem cell(spermatogonium).

false

How many spermatozoa are produced from the whole process of meiosis?

4

How many seminiferous tubules could be in one testis?

1000

Which semen-producing gland secretes an alkaline mucous that cleans the urethra of any traces of acidic urine so there is no chance of having urine still in the urethra when a male ejaculates?

the bulbourethral glands

The corpora cavernosa is

At N

The corpus spongiosum is at

O

Mark the two muscles responsible for an erection. Mark only 2!

bulbospongiosus

ischiocavernosus

Put the pathway of sperm in correct order as they journey to the outside.

seminiferous tubules- epididymis- ductus deferens- ejaculatory duct- urethra