Male

REproductive organs

(Ovaries & Testes)

Sex cells

Eggs and Sperm

Sac like puch located outside bdy cavity

Temp regulaion. 2 degrees less for health sperm

Adjusts distance of testes from body.

Anchors testes to scrotum

Testes orginate in abdominopelvic cavity (By kidneys)

Gubernaculum testes

• Testes are drawn down through abdominal wall (Inguinal canal
• -Vessels nerves and ducts follow
• - part of abdominal walll becmes part of scrtum

• Takes part of the wall with it
• - Cremaster muscle =internal oblique

Hidden testes

Testes do not descend by birth

Mainly in preemies

80% descend spntaneusly by 1 yr

1/2 mile long

Seminiferous Tubules (sperm production)

Sustentacular Cells (aka nurse cells)

Interstitial cells ( between tubules)

Sperm Production

aka nurse cells

• -Nurish and protect sperm
• -Form "blood-sperm-barrier"

Between tubules (secrete testosterone)

• - Secondary sex characteristics
• - Aid in sperm production

Seminiferous tubules

Interstitial Cells

• Tube on top and back of testes
• ABOUT 23 FT LONG

Sperm stored for 2 wks

Sperm Cant move (PSCC & peristaltic movement)

REcycling center (If not ejaculated)

Epididymis

16-18 inches long

Ascends tgrough inguinal canal within spermatic cord

Travels up & over to back of urinary bladder

Lumen enlarges to form ampulla

Empties into ejaculatory duct (in prostate)

Sperm cant move (PSCC & peristaltic movement

Cut anf tie off section of ductus defferens to prevent preganacy

• Prostatic Urethra
• Membranous Urethra
• Spongy ( Penile) Uretha

Through prostate

Through external urethral sphincer

Through erectile tissue of penis

• Seminiferous tubules
• Eididymis
• Ductus deferens
• Ejaculatory duct

(prostatic -> Membranous -> Spongy) urethra

Out

Add secretions to sperm to form organs

Makes 60% of semen

Fructose for energy

Fibrinogento CLOT semen

Alkaline to neutralize vaginal secretions

Ptostoglandins- Reverse peristaltic contractions w/in uterus & tubes.

Reverse pristaltic contractions within uterus & tubes

Antibiotic like to prevent UTI's

Makes 20-30& of sperm

Seminalplasmin- ANTIBIOTIC

Milkt alkaline secretion

BEgins to enlarge after 40 yrs

Tightens around urethra

Clear mucus secretion

Pre-ejaculate (lubricate glans)

Alkaline to neutralize the urethra of urine

Runs down the middle of corpus spongiosum

Covered with PREPUCE foreskin

Arteries run through erectile tissue

Veins run along dorsal surface