Male Reproductive system

what are the primary structure(s) of the male reproductive system?

testes (gonads)

what are the secondary structure(s) of the male reproductive system?

-ducts

-penis

-3 glands

PRODUCTION OF SPERM

spermatogenesis is the:

production of sperm

where does the production of sperm take place?

in the gonads (testes)

what are the steps to spermatogenesis?

1. germ cells

2. spermatogonia

3. spermatocytes

4. spermatids

5. spermatozoa

what is the name for a mature sperm cell?

spermatozoa

where does the production of sperm take place?

within the testes, specifically in the seminiferous tubules within the testes

what is the pathway of sperm once it is made in the seminiferous tubules?

it then travels through the rete testis, then to the epididymis

where in the testes do sperm cells mature?

in the epididymis

label the seminiferious tubules, retes testis, and epididymis:

HORMONES OF THE MALE REPRODUCTIVE SYSTEM

walk through the steps of when the hypothalamus secretes a hormone for sperm production:

The hypothalamus secretes GnRH

GnRH travels to the anterior pituitary gland to activate the release of FSH and LH

what is the function of FSH?

to act on nurse/seritole cells in the testes

what is the function of LH?

to act on interstitial/leydig cells in the testes

what is the function of nurse cells?

• to produce ABP (androgen binding protein)

• to produce inhibin to inhibit FSH

what is the function of leydig cells?

to produce testosterone

how do nurse cells and leydig cells help with the prodcution of sperm?

testosterone needs to be concentrated to make sperm, ABP (produced by nurse cells) binds to testosterone (produced by leydig cells) to concentrate it

SPERMATIC CORD

what is the spermatic cord?

the spermatic cord is a cord that contains 5 major structures that sperm will travel through once matured

what are the 5 major structures within the spermatic cord?

• vas deferens (connects to the epididymis to the ejactulatory duct)

• testicular arteries

• testicular veins

• lymphatic vessels

• autonomic nerves

MATURE SPERM CELLS

what is a mature sperm cell called?

spermatatoza

what is a spermatid? and how many chromosomes does it have?

a male germ cell; it is haploid meaning it only has 23 chromosomes

what is the name of the lining covering the head of the sperm that contains enzymes to help with penetration?

• acrosome

EFFECTS OF TESTOSTERONE

what are the 4 effects of testosterone?

• sperm production

• growth and development of reproductive organs

• secondary sexual characteristics

• regulate sexual function in males

ACCESSORY GLANDS

what are the 3 accessory glands that produce semen for sperm?

seminal vesicles

prostate gland

bulbouretheral gland

what is the function of the seminal vesicle gland?

60% of semen, alkaline fluid that contains fructose, prostaglandins, and clotting proteins

what is the function of the prostate gland?

30% of semen, secretes milky slightly acidic fluid containing citric acid to liquify semen

what is the function of the bulbouretheral gland?

at bulb of penis, secretes lubricating alkaline fluid during seual arousal, neutralizing acids

what are the 5 components of semen?

• sperm

• prostaglandins

• citric acid

• fructose

• buffers

what are the erectile tissues of the male anatomy?

• 2 corpus cavernosum

• 1 corpus spongiosum

label the corpus cavernosum and corpus spongiosum:

what is the name of the surgical procedure that removes the vas deferens?

vasectomy

label the seminal vesicle, vas deferens, epididymis and the testis: