Male Anatomy Flashcards
Glans(head)
Structure:Smooth acorn shaped, well endowed with nerve endings
Located at the tip of the penis
Function: ??
Penis
Structure: shaft is the external portion or the penis, contains 3 erectile structures:
-two corpora cavernosa and one corpus spongiosum.
Root is the internal portion of the penis:
-lies in body
-approximately 2 inches long
- connects the underlying structures of the shaft to the pelvic cavity.
Location: external male genitalia
Function: involved in sexual arousal, excretion if urine and transfer of sperm
Foreskin (prepuce)
Structure: loose tubular fold of skin
Location: partially or completely covers the glans
Function: unclear May protect the glans,
Cavernous bodies (corpora cavernosa)
Two erectile structures located within the shaft of the penis
Location: twin structures lie side by side along the upper side of the penis
Function: fill with blood during arousal, allow for
Most of the penile erectile ability
Spongy body ( corpus spongiosum )
Erectile structure located within the shaft of the penis
Location: near the middle of the or is on it’s lower surface, extends from the shaft into the glans
Function: spongiosum raises visible ridge on the underside if the penis durning sexual arousal
Urethra and urethral opening
Structure: narrow tube
Location: urethra located in the shaft.
Urethral opening located in the glans near the frenulum
Function: transport urine and semen
Corona and frenulum
Structure:
- Corona: timid the glans
- Frenulum: strip of loose skin on the underside of the penis
Location:
- Corona: located around the glans
- Frenulum: runs between the glans and the shaft
Function: corona and frenulum are usually the most erotically sensitive regions
PC (pubococcygeous) Muscle
Structure/location : underlies/ supports pelvic organs
Function: contraction during sex, prevent fecal and urinary leakage, PC muscle control can allow makes to delay ejaculation
Scrutum
Structure: sack like
Located behind the penis
Function:
- contains testicle
- maintains proper testicle temperature
- stimulation of the scrotum is sexually arousing to most men