Cadaver Muscles

Pectoralis Major

A-, All fibers: adduct the shoulder (glenohumeral joint), medially rotate the shoulder, assist in elevating the thorax in forces inhalation

Pectoralis Minor

A flat triangular muscle which lies completely deep to the pectoralis major.

Latissimus Dorsi

Extends, adducts, and medially rotates the arm; draws the shoulder downward and backward

Trapezius

Elevates, depresses, retracts, and rotates the scapula; rotates the arm

Rhomboid Major

Dorsal Scapular;, Concentrically produces scapular retraction and downward rotation

Rhomboid Minor

Adduct the scapula (scapulothoracic joint), elevate the scapula, downwardly rotate the scapula; anterior surface of medial border of scapula

Teres Minor

In the green-Laterally rotate the shoulder (g/h joint), adduct the shoulder, extend shoulder, horizontally abduct the shoulder (g/h joint). Stabilize head of humerus in glenoid cavity; Description: Inferior to Infraspinatus, above Teres Major, scapula to humerus

Teres Major

B-, Extend, Adduct, Medially Rotate The Humerus; Description: Inferior to Teres Minor, posterior surface at inferior angle of scapula to humerus

Supraspinatus

1st one down from the left; Abducts arm; stabilizes the head of the humerus in glenoid cavity; , -Extends from the scapula to the humerus

Infraspinatus

E-, Laterally rotates shoulder; stabilizes the head of the humerus in glenoid cavity; Description: Partially covered by Deltoid and Trapezius, below supraspinatus on scapula, connects to humerus, Rotator Cuff

Gluteus Maximus

Butt; Extends and laterally rotates thigh; adducts the hip

Gluteus Medius

Abducts and medially rotates thigh; , Description: Above and partially under Gluteus Maximus

Rectus Femoris

A-, Extends leg at the knee and flexes thigh at the hip; part of the quadriceps group, Description: Superficial, runs straight down, middle of thigh

Vastus Lateralis

D-, Extends Lower Leg; Description: Outside of thigh, under Tensor Fasciae

Vastus Intermedius

Description: Underneath Rectus Femoris, between Vastus Lateralis and Vastus Mediali; , Extends knee

Vastus Medialis

B-, Extend leg @ knee; , Description: Inside of thigh, under Sartorius

Tensor Faciae Latae

B-, flexes/abducts/rotates thigh medially;, fan-shaped superficial thigh muscle attached to the ilioitibial band

Adductor Longus

Adducts and flexes thigh at the hip; assists in medial rotation

Biceps Femoris

Description: Outside of leg, under Gluteus Maximus; , Flexes leg at the knee and extends thigh at the hip; belongs to the hamstring group

Semitendinosus

Description: Inside of leg, next to Biceps Femoris

Semimembranosus

Description: Deep to Semitendinosus

Sartorius

Flexes, abducts, and laterally rotates thigh at the hip; flexes knee; A long, narrow muscle running obliquely across the front of each thigh from the hipbone to the inside of the leg below the knee.

Gracilis

Adducts thigh at the hip and flexes leg at the knee; assists in medial rotation; groin muscle

Tibialis Anterior

A-, Extends and inverts foot at ankle. Holds up medial longitudinal arch of foot

Extensor Digitorum Longus

Extends the lateral four toes; dorsiflexion of ankle and eversion of foot; Femur to Phalange

Fibularis Longus

ISOLATED FUNCTION: concentrically plantarflexes and everts the foot INTEGRATED FUNCTION: decelerates ankle dorsiflexion, isometrically stabilizes the foot and ankle complex

Gastrocnemius

Aids in flexion of the knee/primary mvmt is the ankle plantar flexion; toe dancer muscle, 2 bellied, calf muscles

Tibialis Posterior

Is a deep muscle that lies deep to the soleus; Inverts foot; may assist in strong plantar flexion or control pronation of foot during walking

Rectus abdominis

internal oblique

external oblique