Medial Thigh Flashcards
what muscles are located in the medial thigh
adductor longus
adductor brevis
adductor magnus
gracilis
obturator externus
what is the nerve rule of the medial thigh
obturator nerve
what is the exception to the nerve rule
superficial part of the adductor magnus
innervated by tibial nerve
adductor longus origin and insertion
O: superior pubic ramus and anterior side of the symphysis
I: femur (linea aspera and medial lip in the middle third of the femur)
adductor longus innervation
obturator nerve (L2,L4)
adductor longus action
Hip joint: ADD, flexion (up to 70 degrees), EXT (past 80 degrees of flexion), stabilizes the pelvis in the coronal and sagittal planes
adductor brevis origin and insertion
O: inferior pubic ramus
I: femur (linea aspera and medial lip in the middle third of the femur)
adductor brevis innervation
obturator nerve (L2,L3)
adductor brevis action
Hip joint: ADD, flexion (up to 70 degrees), EXT (past 80 degrees of flexion), stabilizes the pelvis in the coronal and sagittal planes
adductor magnus origin
inferior pubic ramus
ischial ramus
ischial tuberosity
adductor magnus insertion
deep part: medial lip of the linea aspera
superficial part: adductor tubercle of femur
deep part of the adductor magnus
fleshy insertion
superficial part of the adductor magnus
tendinous insertion
adductor magnus innervation
deep part: obturator nerve (L2,L4)
superficial part: tibial nerve (L4)
adductor magnus action
hip: ADD, EXT, slight flexion, IR (superficial part), stabilizes the pelvis in the coronal and sagittal plane
gracilis origin and insertion
O: inferior pubic ramus below the symphysis
I: tibia (pes anserine), medial border of the tuberosity
gracilis innervation
obturator nerve (L2,L3)
gracilis action:
hip: ADD and flexion
knee: flexion and IR
obturator externus origin and insertion
O: outer surface of the obturator membrane and its bony boundaries
I: trochanteric fossa of the femur
obturator externus innervation
obturator nerve (L3,L4)
obturator externus action
hip: ADD, ER, stabilizes pelvis in the sagittal plane
obturator artery
from internal iliac artery through obturator foramen
what artery does the obturator artery help
helps femoris profundus supply the adductor muscles
via anterior and posterior branches
posterior branch of the obturator artery
gives off acetabular branch that supplies the head of the femur
veins of the medial thigh
accompanying arteries
nerves of the medial thigh
obturator (anterior and posterior divisions) (names based off of adductor brevis muscle)
provides motor and sensory to superomedial thigh
pes anserine
attachment point for sartorius, gracilis, semitendinosus
one muscle from each compartment attaches here
Say Grace before Tea (order the muscles are in more lateral to more medial)
