Exercise 38 A Male Reproductive Organ Structure and Function

secretes mucous for lubrication of glands, alkaline pH

bulbourethral gland

contracts to pull testes close to body; located in spermatic cord

cremaster muscle

contracts to wrinkle scrotum; located in scrotal wall

dartos muscle

tube located in both the spermatic cord and pelvic cavity for transporting sperm

ductus (vas) deferens

located in prostate, formed by union of ducts of the ductus deferens and seminal vesicles

ejaculatory duct

site of storage and maturation of sperm

epididymis

part of urethra within the urogenital diaphragm

membranous urethra

copulatory organ, passageway for urine and semen

penis

secretes 25% of semen volume, increases viability and motility of sperm

prostate gland

ejaculatory duct opens into this part of urethra

prostatic urethra

covers and protects testes

scrotum

secretes 60% of semen volume; alkaline pH; prostaglandins

seminal vesicles

last section of urethra located in penis

spongy urethra

organ that produces sperm

testes