Chapter 13: Male Genitalia and Hernias Flashcards
(38 cards)
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
inguinal hernias
when loops of bowel force their way through weak areas of the inguinal canal
phimosis
tight prepuce that cannot be retracted over the glans
balanitis
inflammation of the glans
hypospadias
congenital, ventral displacement of the meatus
Non-gonococcal urethritis
scanty white or clear discharge in non-gonococcal urethritis
epidermoid cysts
dome-shaped white or yellow papules or nodules formed by occluded follicles fills with keratin debris of desquamated epithelium-benign
palpation
testis/epididymis–spermatic cord
inguinal hernia
right index finger close to inferior margin of scrotal sac, move finger upward along inguinal canal, invaginating scrotum. follow upward to the inguinal ligament. find triangular slitlike opening of the external inguinal ring just above and lateral to pubic tubercle. palpate external ring and floor-pt bears down
scrotal edema
pitting edema seen in chf or nephrotic syndrome