Male GU
glans penis - ANS-at distal end of shaft corpus spongiosum expands into cone of
erectile tissue
corona - ANS-where glans joins shaft
Urethra - ANS-runs through corpus spongiosum. meatus forms slit at tip of glans
Foreskin/prepuce - ANS-forms flap over glans, often removed by circumcision
frenulum - ANS-fold of foreskin extending ventrally from urethral meatus
cremaster muscle - ANS-controls size of scrotum, responds to ambient temperature
testes - ANS-solid, oval shape, Left has longer spermatic cord, hangs lower, tunica
vaginalis is the double layered membrane covers each testes, separates it from the
scrotal wall
prenatal - ANS-testes develop in abd cavity near kidneys, in later mo's of gestation,
testes migrate and descent along inguinal canal to scrotum
At birth - ANS-testes measure 1.5-2cm long and 1 cm wide
Puberty - ANS-occurring earlier in boys, starts on avg 9 yrs in Afro-Caribbean
Americans and 10 yrs for Caucasians and Hispanics, no definite end to fertility
Tanner stages of sexual development - ANS-Evaluation of 3 secondary sex
characteristics : scrotum, pubic hair, penis
Aging Adult Male - ANS-~30 yrs testosterone starts to decline, ~40 yrs sperm
production starts to decrease. Decreased pubic hair, grayed. Rugae decrease and
scrotum becomes pendulous, testes decrease in size, less firm to palpation, decreased
sperm, decreased ejaculatory force and volume, orgasmic intensity. slower sexual
response.
initial hematuria - ANS-urine flow starts blood and then clears up, problem is probably in
the initial portion of the penis or the urethra
glans penis - ANS-at distal end of shaft corpus spongiosum expands into cone of
erectile tissue
corona - ANS-where glans joins shaft
Urethra - ANS-runs through corpus spongiosum. meatus forms slit at tip of glans
Foreskin/prepuce - ANS-forms flap over glans, often removed by circumcision
frenulum - ANS-fold of foreskin extending ventrally from urethral meatus
cremaster muscle - ANS-controls size of scrotum, responds to ambient temperature
testes - ANS-solid, oval shape, Left has longer spermatic cord, hangs lower, tunica
vaginalis is the double layered membrane covers each testes, separates it from the
scrotal wall
prenatal - ANS-testes develop in abd cavity near kidneys, in later mo's of gestation,
testes migrate and descent along inguinal canal to scrotum
At birth - ANS-testes measure 1.5-2cm long and 1 cm wide
Puberty - ANS-occurring earlier in boys, starts on avg 9 yrs in Afro-Caribbean
Americans and 10 yrs for Caucasians and Hispanics, no definite end to fertility
Tanner stages of sexual development - ANS-Evaluation of 3 secondary sex
characteristics : scrotum, pubic hair, penis
Aging Adult Male - ANS-~30 yrs testosterone starts to decline, ~40 yrs sperm
production starts to decrease. Decreased pubic hair, grayed. Rugae decrease and
scrotum becomes pendulous, testes decrease in size, less firm to palpation, decreased
sperm, decreased ejaculatory force and volume, orgasmic intensity. slower sexual
response.
initial hematuria - ANS-urine flow starts blood and then clears up, problem is probably in
the initial portion of the penis or the urethra
