OIAN of gluteal region Flashcards
gluteus maximus o
ilium posterior to posterior gluteal line, dorsal surface of sacrum and coccyx, sacrotuberous lig
glut max i
iliotibial tract (inserts into lat condyle of tib and glut tub)
glut max n
inferior gluteal n (l5, s1 s2)
glut max a
extend thigh, lat rot, steadies thigh and assists in rising from sitting position
glut med o
external surface of ilium b/w ant and post glut lines
glut med i
lat surface of greater trochanter of femur
glut med, min, TFL N
superior gluteal nerve L5
glut med, min, tfl a
abduct and medially rotate thigh, keep pelvis level when ipsilateral limb is wieght bearing and unsuported side during its swing phase
tfl also flexes
glut min o
external surface of ilium between ant and inf glut lines
glut min i
ant surface of greater trochanter of femur
TFL o
ASIS, ant part of iliac crest
TFL i
iliotibial tract (which attaches to lat condyle of tibia)
Piriformis o
ant surface of sacrum, sacrotuberous lig
piriform i
superior border of greater trochanter of femur
piriformi n.
branches of anterior ramiof S1 and s2 nerve to the piriformis
actions of priformis, obturator internus, superior and inferior gemelli
laterally rotate and extend thigh, abduct flexed thigh, steady felmoral head in acetabulum
obturator internus o
pelvic surface of obturator membrane and surrounding bones
obt intern i
medial surface of greater trochanter (trochanteric fossa)
obt intern n
obturator internus N l5 and S1
superior and infer gemelli o
superior: ischial spine, inf: ishial tuberosity
sup and inf gemelli i
medial surface of greater trochater (trochanteric fossa) SAME AS OBT INT
sup and inf gem n
superior : same as NERVE ABOVE obt so nerve to obt int l5, S1 OBTURATOR INTERNUS
inferior: same as quad fem the one below (nere to quadratus fem l5 s1) QUADRATUS FEMORUS
quadratus femoris o
lateral border of ischial tuberosity
quad fem i
quadrate tubercle on intertrochanteric crest of femur and area inferior to it
quad fem n
nerve to quad fem l5, s1
quad fem a
laterally rotate thigh, steadies fem head in acetabulum
adduction
psoas major o
sides of t12-l5 vert and disc, tp’s of all lumbar
psoas maj i
lesser trochanter of femur
psoas maj n
anterior rami of lumbar L1 L2 l3
from lumbar plexus
action of psoas maj, minor, iliacus
act conjointly in flexing thigh, stabilizing jt
psoas minor o
sides of t12-l1 and ivd
psoas min i
pectineal line, iliopectineal eminence via iliopectineal arch
psoas min n
ant rami of lumbar nerve L1, L2 (same as psoas maj)
iliacus o
iliac crest, iliac fossa, ala, ant sacroiliac lig
iliacus i
tendon of psoas maj, lesser torachanter, femur distal to les troch
like psoas maj
iliacus n
femoral nerve L2, l3
quadratus lumborum o
transverse process L5, iliolumbar ligament, posterior portion of iliac crest
quad lumborum i
lower border of twelfth rib, TP L1-4
quad lumb n
ventral rami of T12-L3
quad lumb a
bilat: extend spine, depress 12 rib, stabilize oring of diaphragm to 12th rib
unilat: lateral flex spine
nerves all above piriformis (glut med, min, TFL N)
glut max
sup gem and obturator internus share nerve below it
INF gem and quad femorus share below
superior gluteal n,
inferior glut n
obturator internus
quadratus femorus
what muscle isnt in everyone
psoas minor
upper medial sensory
dorsal rami L1-L3 (aka superior cluneal) dorsal rami S1-S3 (aka middle cluneal)
lower medial sensory
posterior femoral cutaneous S1-3 (aka inferior cluneal)
upper lateral sensory
iliohypogastric L1
lower lateral sensory
lateral femoral cutaneous L2, L3
besides upper medial all the rest are
ventral rami
7 what goes through the greater sciatic foramen
Piriformis Muscle Superior Gluteal VAN(Vein/Artery/Nerve) Inferior Gluteal VAN Sciatic Nerve (L4, L5, S1, S2, S3) Pudendal Nerve (S2, S3, S4) Internal Pudendal Artery Posterior Femoral Cutaneous Nerve
2 what goes through the lesser sciatic foramen
Internal Pudendal Artery Pudendal Nerve (S2, S3,S4)
what are the boundaries of the greater sciatic foramen
greater sciatic notch, sacrum, sacrospinous ligament
what are the boundaries of the lesser sciatic foramen
lesser sciatic notch, sacrospinous ligament, sacrotuberous ligament
