Thigh muscles table PDF

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Summary

Table of insertion, origin, innervation and action of thigh muscles...

Description

Thigh Anterior compartment muscles  Sartorius, iliacus and psoas (iliopsoas)  Quadriceps femoris o Rectus femoris o Vastus lateralis o Vastus medialis o Vastus intermedius Medial Compartment muscles  Adductor magnus, adductor longus, adductor brevis, pectineus, gracilis Posterior compartment muscles:  Biceps femoris, semitendinosus, semimembranosus Muscle

Origin

Insertion

Innervation

Action

Psoas major

Bodies of transverse processes T12- L5 and intervertebral discs

Lesser trochanter

L1, L2, L3

Flexes thigh at the hip

Iliacus

Iliac fossa

Lesser trochanter

Femoral nerve

Flexes thigh at the hip, anterior pelvic tilt

Anterior compartment Muscle

Origin

Insertion

Sartorius

Anterior superior iliac spine

Femoral Medial surface of tibia  Inferomedial to tibial nerve tuberosity

Rectus femoris

Straight head: AIIS Tibial tuberosity via Reflected head: quadriceps femoris tendon Superior to acetabulum and patellar ligament

Femoral nerve

Flexes thigh at hip, extends leg at knee

Vastus lateralis

Intertrochanteric line, Tibial tuberosity via qudriceps femoris tendon greater trochanter, gluteal tuberosity, linea and patellar ligament aspera

Femoral nerve

Extends leg at knee

Vastus medialis

Intertrochanteric line, linea aspera, medial supracondylar line

Femoral Tibial tuberosity via nerve quadriceps femoris tendon and patellar ligament, medial border of patella

Extends leg at knee

Tibial tuberosity via Femoral quadriceps femoris tendon nerve and patellar ligament, lateral border of patella

Extends leg at knee

Vastus Upper anterior and intermedius lateral femur

Innervation Action Flexes thigh (at hip) and leg at knee, abducts, laterally rotates thigh at hip

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Thigh Medial compartment Muscle

Origin

Insertion

Innervation

Action

Gracilis

Body of pubis, Medial proximal shaft of ischiopubic tibia ramus

Obturator nerve

Adducts thigh at hip and flexes and assists in medial roation of leg at knee

Pectineus

Superior ramus of pubis

Obturator/femoral nerve

Adducts and flexes thigh at hip

Adductor longus

Body of pubis Linea aspera (middle third)

Obturator nerve

Adducts thigh at hip

Adductor brevis

Body of pubis, Posterior surface of inferior pubic proximal femur and linea ramus aspera (upper third)

Obturator nerve

Adducts thigh at hip, weak flexor of the hip

Adductor magnus

Adductor part: ischiopubic ramus Hamstring Part: ischial tuberosity

Pectineal line of femur

 Adductor part:  Posterior surfae of proximal femur and linea aspera,  Medial supracondylar line Hamstring part:  Adductor tubercle

Adduct or part: obturator nerve Hamstring part: sciatic

Adducts (adductor part) and extends thigh (hamstring part) at hip

Innervation

Action

Posterior compartment Muscle

Origin

Insertion

Semitendinosus

Ischial tuberosity

Medial surface of proximal tibia

Sciatic nerve (tibial division)

Flexes and medially rotates leg (knee), extends thigh (hip)

Medial tibial condyle

Sciatic nerve (tibial division)

Flexes and medially rotates leg at knee, extends thigh at hip

Lateral aspect of head of fibula

Sciatic nerve (long -head), short head common fibular division

Flexes leg and laterally rotates knee, extends thigh at hip

Semimembranosus Ischial tuberosity

Biceps femoris

Long head:  Ischial tuberosity Short head:  Linea aspera and lateral supracondylar line

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