Anatomy: The Muscular System

Front 1

Adductor Magnus

Back 1

-Adducts, flexes, laterally rotates thigh
-O:Inferior rami of ischium/pubis
-I:Linea aspera/medial epicondyle of femur

Front 2

Longisimus Capitis

Back 2

-Extends head (together), and turns head side ways.
-O:Transverse process T1-T5and articular processes C5-C7
-I:Mastoid process and posterior margin of crainium

Front 3

Mylohyoid

Back 3

-Elevates hyoid bone, raises floor of of mouth and tounge
-O:Inside surface of mandible from symphysis to molars.
-I:Hyoid bone

Front 4

Perouneus Longus

Back 4

-Plantar flexes and everts foot. Supports lateral longitudinal and transverse arches
-O:Upper two thirds of lateral shaft of fibula , head of fibula and superior tibiofibular joint
-I:Plantar aspect of base of 1st metatarsal and medial cuneiform

Front 5

Psoas Major

Back 5

-Flexes and medially rotates hip
-I:Middle surface of lesser tochanter of femur.
-O:Transverse processes of L1-5, bodies of T12-L5 and intervertebral discs below bodies of T12-L4

Front 6

Rhomboid Major

Back 6

-Retracts scapula
-O:Spines of T2-T5 and supraspinous ligaments
-I:Lower half of posteromedial border of scapula, from angle to upper part of triangular area at base of scapular spine

Front 7

Sartorius

Back 7

-Flexes hip and knee, rotates femur miedially,rotates tibia laterally.
-O:anterior superior spine of illium.
-I:Medial aspect of tibial tuberosity.

Front 8

Semimembranosus

Back 8

-Flexes knee, extends hip, medially rotates tibia.
-O:Ischial tuberosity
-I:Medial condyle of tibia, collateral ligament of knee.

Front 9

Serratus Anterior

Back 9

-Protraction/rotation of scapula
-O:Eight upper frontal ribs.
-I:Anterior surface of medial border of scapula

Front 10

Vastus Intermedius

Back 10

-Extends knee
-O:Superior 2/3 of anterior and lateral surfaces of femur; also from lateral intermuscular septum of thigh.
-I:Lateral border of patella; also forms the deep portion of the quadriceps tendon.