Cadaver Muscles

Biceps Brachii

Anterior aspect of upper arm (flexes the elbow)

Coracobrachialis

ACTION -FLEXION AND ADDUCTION OF THE HUMERUS; SYNERGIST OF PECTORALIS MAJOR

Triceps- long head

Extends elbow, helps control ulnar movement during pronation (Elbow joint, movements of the forearm, posterior)

Triceps- lateral head

Brachialis

Aids in elbow flexion with the Biceps Brachii.

Deltoid

A-, A large triangular muscle covering the shoulder joint and serving to abduct and flex and extend and rotate the arm.

Brachioradialis

Flexes elbow

Flexor carpi radialis

D-Flexes wrist and abducts hand

Flexor digitorum superficialis

a skeletal muscle whose contraction bends a joint

Flexor digitorum profundus

Bases of distal phalanges of digits 2-5, palmar side by four separate tendons

Palmaris Longus

C-, Description: Between flexor carpi radialis and flexor carpi ulnaris, humerus to skin and fascia of palm

Flexor carpi ulnaris

F-, Flexes and adducts wrist

Pronator teres

Extensor digitorum

First one lower left- a skeletal muscle whose contraction extends or stretches a body part

Extensor digit minimi

Second one from the lower left; extension of the little finger at the metacarpophalangeal joint (assists the extensor digitorum)

Abductor pollicis longus

Abducts and extends thumb

Extensor Carpi Ulnaris

Second one from the lower right

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.

Serratus Anterior

*With Origin Fixed: Abduct The Scapula, Hold Medial Border Of Scapula Against Rib Cag; External surfaces of ribs 1-8

External Oblique

Description: most superficial, fibers at angle, from last 5 ribs to linea alba and pubic crest and iliac crest; Compresses abdomen; laterally flexes and rotates vertebral column

Internal Oblique

Deeper lower side muscles, underneath external oblique; Action: Compresses abdomen, flexes and rotates trunk

Transversus Abdominis

Deepest layer of the anterior abdominal muscles; Constricts abdomen and supports abdominal viscera

Rectus Abdominis

Flexes vertebral column and compresses abdominal contents (defecation, childbirth, forced breathing; abs

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

Levator Scapulae

Actions - elevation of the scapula & downward rotation of the scapula , Between clavicle and the 2nd rib against sternum, back of the neck

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 Minimus

Abducts and medially rotates thigh; External surface of ilium between anterior and inferior gluteal lines

Gluteus Medius

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

Piriformis

Abducts and laterally rotates thigh at the hip

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

Adductor Longus

Action-Adducts (brings the femur toward the midline of the body) and flexes the femur at the hip

Adductor Brevis

2nd one down; Action-Adducts (brings the femur toward the midline of the body) and flexes the femur at the hip; , * Inner Thigh; deep to adductor longus

Adductor Magnus

Description: Below Adductor Longus; , A: adducts thigh, adductor portion flexes thigh, hamstring portion extends thigh

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

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

Flexes leg at the knee and extends thigh at the hip; belongs to the hamstring group

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 (Peroneus) Longus

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

Medial Gastrocnemius

the muscle in the back part of the leg that forms the greater part of the calf

Lateral Gastrocnemius

the muscle in the back part of the leg that forms the greater part of the calf; the outer most part

Gastrocnemius

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

Soleus

B-, Plantar flexes foot; A broad muscle in the lower calf, below the gastrocnemius, that flexes the foot to point the toes downward.

Sternocleidomastoid

Contraction of one side: laterally flexes neck, rotates head to opposite side; Contraction of both sides together: flexes neck; strap muscle located on anterior of neck