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Medial Thigh Muscles
Origins, insertions, innervation, action, and blood supply of muscles of the medial thigh
30
Anatomy
Graduate
09/15/2011

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Term
Pectineus: origin
Definition
pecten pubis
Term
Pectineus: insertion
Definition
pectineal line of femur
Term
Pectineus: innervation
Definition
femoral n. (L2,L3) and sometimes the obturator n.
Term
Pectineus: action
Definition
adducts and flexes thigh
Term
Pectineus: blood supply
Definition
medial circumflex femoral a., obturator a.
Term
Adductor longus: origin
Definition
body of pubis, inferior to pubic crest
Term
Adductor longus: insertion
Definition
middle 1/3 of linea aspera of femur
Term
Adductor longus: innervation
Definition
obturator n. (anterior division) (L2 to L4)
Term
Adductor longus: action
Definition
adducts thigh
Term
Adductor longus: blood supply
Definition
medial circumflex femoral a., obturator a.
Term
Adductor brevis: origin
Definition
body and inferior pubic ramus
Term
Adductor brevis: insertion
Definition
pectineal line and proximal part of linea aspera of femur
Term
Adductor brevis: innervation
Definition
obturator n. (L2 to L4)
Term
Adductor brevis: action
Definition
adducts and flexes thigh
Term
Adductor brevis: blood supply
Definition
medial circumflex femoral a., obturator a.
Term
Adductor magnus: origin
Definition
inferior pubic ramus, ramus of ischium, and ischial tuberosity
Term
Adductor magnus: insertion
Definition
gluteal tuberosity, linea aspera, supracondylar line, and adductor tubercle
Term
Adductor magnus: innervation
Definition
adductor part: obturator n. (L2 to L4)
hamstring part: tibial n. (L4)
Term
Adductor magnus: action
Definition
adducts and flexes thigh (adductor part)
extends thigh (hamstring part)
Term
Adductor magnus: blood supply
Definition
deep femoral a., popliteal a., obturator a.
Term
Gracilis: origin
Definition
body of pubis and inferior pubic ramus
Term
Gracilis: insertion
Definition
superior part of medial surface of tibia (pes anserinus)
Term
Gracilis: innervation
Definition
obturator n. (L2,L3)
Term
Gracilis: action
Definition
adducts thigh, flexes and medially rotates the leg
Term
Gracilis: blood supply
Definition
deep femoral a., medial circumflex femoral a.
Term
Obturator externus: origin
Definition
margins of obturator foramen and obturator membrane
Term
Obturator externus: insertion
Definition
trochanteric fossa of femur
Term
Obturator externus: innervation
Definition
obturator n. (L2,L3)
Term
Obturator externus: action
Definition
laterally rotates the thigh and stabilizes head of femur in acetabulum
Term
Obturator externus: blood supply
Definition
medial circumflex femoral a., obturator a.
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