perineum anal triangle Flashcards
what are the relations of the anal canal in MALES?
Posterior: anococcygeal body
Lateral: ischiorectal fossa
Anterior: perineal body, urogenital diaphragm, membranous part of urethra, bulb of penis
what are the relations of the anal canal in FEMALES?
posterior: anococcygeal body
Lateral: ischiorectal fossa
Anterior: perineal body, urogenital diaphragm, lower part of vagina
internal hemorroids are a varicosity of what vein?
superior rectal vein (painless)
external hemorrhoids are a varicosity of what vein?
inferior rectal veins (painful)
which anal sphicter is your voluntary sphincter?
internal anal sphincter
what is the anorectal ring formed by?
internal sphincter
deep part of the external sphincter
puborectalis muscle
what are the branches of the pudendal nerve?
inferior rectal nerve
dorsal nerve of the penis/ clitoris
perineal nerve