Chapter 13: Male Genitalia and Hernias Flashcards
Shaft of penis
formed by 3 columns of vascular erectile tissue:
- corpus spongiosum-contains urethra
- 2 copora cavernosa
glans
cone shaped ending of penis
corona
expanded base of glans-ridge
prepuce
tip of penis-foreskin
urethral meatus
opening to urethra
testes
ovoid, rubbery structures-left lies lower than right. produce sperm and testosterone
scrotum
loose, wrinkled pouch divided into 2 compartments each containing teste
tunica vaginalis
covers the testes, except posteriorly, serous membrane
epididymis
on posterior surface of each testis-softer comma shaped. tightly coiled spermatic ducts that provide for a reservoir for storage, maturation, and transport of sperm to the vas deferens
vas deferens
cordlike structure: during ejaculation it transports sperm from the tail of the epididymis along circular route to the urethra.
ejaculatory duct
vas deferens merges with the seminal vesicle-forms ejaculatory duct-traverses prostate and epmties in the urethra.
spermatic cord
each vas is closely associated with blood vessels, nerves, and muscle fibers-make up spermatic cord
inguinal canal
lies above and approx parallel to the inguinal ligament, forms a tunnel for the cas deferens as it passes through the abd muscles
external inguinal ring
exterior opening of the tunnel-triangluar, slitlike structure palpable just above and lateral to the pubic tubercle
internal inguinal ring
approx 1 cm above the midpoint of the inguinal ligament