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
nerves to bladder
detrusor S2-S4 but mainly S3. mostly parasympathetic from the hypogastric plexus and splanchnic nerves
coatings on testicle
tunica albuginea, then tunica vaginalis
Length of a ureter
25cm long
length of a vagina - and anterior and posterior portions
10cm long
anterior 7cm
posterior 9 cm
cell types of vagina
non-keratinised stratified squamous.
blood supply of vagina
superior - uterine artery
middle to inferior - vaginal artery
vein: vaginal artery
Lymph drainage of vagina
Superior - internal iliac nodes
Inferior - inguinal nodes (superficial)
Blood supply of urethra
upper third - pudendal artery (same as bladder)
lower two thirds - vaginal artery (same as clitoris and anterior vaginal wall)
Adrenal glands - 4 zones
CORTEX
- zona glomerulosa - mineralocorticoids
- z fascilulata - glucocorticoids
- z reticularis - androgens
GMFGRAMA
Medulla - adr/noradr
Inguinal ligament landmarks
deep ring
superficial ring
ASIS to pubic tubercle
deep ring : 1/2 inch above mid point of ligament
superficial ring: 1cm sup/lat to pubic tubercle
contents of inguinal canal
round ligament, branch of genitofemoral nerve, ilioinguinal nerve
boundaries of fem triangle
contents
superior: inguinal ligament
medial: medial border or adductor longus
lateral: sartorius
floor: adductor longus
femoral nerve, artery, vein, fat and lymph
Femoral sheath
artery, vein and lymph
nerve is lateral