Biology Lab 6

Muscles That Moves The Arm

Deltoid

Abducts arm

Latissimus Dorsi

Adducts and extends arm

Rotates arm medially

Pectoralis Major

Flexes and adducts arm

Rotates arm medially

Teres Major

Adducts, extends and medially rotates arm

Coracobrachialis

Flexes and adducts arm

Teres Minor: Rotator Cuff

Lateral rotation at shoulder

Subscapularis: Rotator Cuff

Medial rotation at shoulder

Supraspinatus: Rotator Cuff

Abduction at shoulder

Infraspinatus: Rotator Cuff

Lateral rotation at shoulder

MUSCLES THAT MOVE THE FOREARM AND

HAND

Brachialis

Flexes forearm

Brachioradialis

Flexes forearm

Biceps Brachii

Flexes forearm

Triceps Brachii

Flexes forearm

Pronator Teres

Pronates forearm

Supinator

Supinates forearm

MUSCLES THAT MOVE THE HAND AND

FINGERS

Palmaris Longus

Flexes hand

Flexor Carpi Ulnaris

Flexes and adducts hand

Flexor Carpi Radialis

Flexes and abducts hand

Flexor Digitorum Superficialis

Flexes fingers and hand

Extensor Digitorum

Extends fingers and hand

Extensor Carpi Ulnaris

Extends and adducts hand

MUSCLES THAT MOVE THE THIGH

Psoas Major

Flexes the thigh

Laterally rotates hip

Iliacus

Flexes thigh

Pectineus

Adducts, flexes and medially rotates thigh

Gluteus Maximus

Extends and laterally rotates thigh

Gluteus Medius

Abducts and medially rotates thigh

Tensor Fascia Latae

Abducts thigh

Flexes and medially rotates thigh

Gracilis

Flexion at knee

Adducts and medially rotates thigh

Adductor Magnus

Adducts and medially rotates thigh

Adductor Longus

Adducts, flexes and medially rotates thigh

MUSCLES THAT MOVE THE LEG

Sartorius

Flexes and laterally rotates hip

Flexion at knee

Piriformis

Abducts and laterally rotates thigh

Rectus Femoris: Quadriceps (Anterior Femoral

Compartment)

Extends the leg

Flexes the thigh

Vastus Medialis: Quadriceps (Anterior Femoral

Compartment)

Extends leg

Vastus Lateralis: Quadriceps (Anterior Femoral

Compartment)

Extends leg

Vastus Intermedius: Quadriceps (Anterior Femoral

Compartment)

Extends leg

Semimembranosus: Hamstrings (Posterior Femoral

Compartment)

Extends and laterally rotates hip

Flexion at knee

Semitendinosus: Hamstrings (Posterior Femoral

Compartment)

Extends and laterally rotates hip

Flexion at knee

Biceps Femoris: Hamstrings (Posterior Femoral

Compartment)

Extends and laterally rotates hip

Flexion at knee

MUSCLES THAT MOVE THE FOOT AND TOES

Tibialis Anterior

Dorsiflexion and inversion of foot

Tibialis Posterior

Inversion and adduction of foot

Plantar flexion of foot

Gastrocnemius

Plantar flexion of foot

Flexes leg

Soleus

Plantar flexion of foot

Fibularis Brevis

Plantar flexion and eversion of foot

Fibularis Longus

Plantar flexion and eversion of foot

CONNECTIVE TISSUE ELEMENTS

Iliotibial (IT) Band

Calcaneal Tendon