Anatomy Flashcards
what forms the pelvic inlet
sacral promontory, SIJs, iliopectineal line, pubic rami, pubic symph
conjugates -
true
obstetric
diagonal
pudendal nerve arises from
anterior rami of S2, 3 and 4
Pudendal nerve leads to
branch - inferior rectal
terminal - dorsal branch of the clitoris, perineal
pelvic splanchnic nerves arise from
and control
arise from ventral primary rami of S2-4
control micturition, defecation and erection
rectal plexus from..
posterior division of the hypogastric plexus
ilioinguinal nerve derived from
branches
L1
anterior labial nerve - vulval skin
Pudendal veins drain to
Internal -> internal iliac
External -> great saphenous
sciatic nerve arises from:
L4-S3
Tibial nerve from:
L4-S3 (anterior)
Femoral nerve from:
L2-L4
Anal canal cell types and arterial supply
Upper two thirds - cuboidal and superior rectal artery
Lower third - squamous non-keratin. inferior rectal
Pectinate line /dentate line between these
Hilton’s line
Keratinised to non-keratinised squamous at anal opening - white line
which muscle has fibres which connect with the internal anal sphincter
pubococcygeus
blood supply to the bladder
superior and inferior vesicle arteries - branches of the trunk of the internal iliac