BIOL 212 Unit 3 O.I.A.

Trapezius

elevates, depresses, rotates, and retracts scapula

Rhomboid major

rotates and retracts scapula

Rhomboid minor

rotates and retracts scapula

Levator scapulae

elevates scapula

Pectoralis minor

depresses, protracts, and rotates scapula

Serratus anterior

protracts and rotates scapula

Pectoralis major

flexes, adducts, and medially rotates arm (GH joint)

Latissimus dorsi

extends, adducts, and medially rotates arm (GH joint)

Deltoid

abducts, flexes and extends, medially and laterally rotates arm (GH joint)

Supraspinatus

abducts arm and stabilizes glenohumerus joint *Rotator cuff

Infraspinatus

laterally rotates arm and stabilizes glenohumeral joint *Rotator cuff

Subscapularis

medially rotates arm and stabilizes glenohumeral joint *Rotator cuff

Teres minor

Laterally rotates and adducts arm and stabilizes glenohumeral joint *Rotator cuff

Teres major

adducts, extends and medially rotates arm (GH joint)

Coracobrachialis

flexes and adducts arm (GH joint)

Biceps brachii (long head)

flexes arm (GH joint), flexes forearm (elbow joint), and supinates forearm

Biceps brachii (short head)

flexes arm (GH joint), flexes forearm (elbow joint)

Brachialis

flexes forearm/elbow

Triceps brachii (long head)

extends forearm/elbow and extends arm (GH joint)

Triceps brachii (lateral head)

extends forearm/elbow

Triceps brachii (medial head)

extends forearm/elbow

Brachioradialis

flexes forearm/elbow

Pronator teres

pronates forearm/elbow

Supinator

supinates forearm/elbow

Flexor carpi radialis

flexes and abducts wrist

Palmaris longus

flexes wrist

Flexor carpi ulnaris

flexes and adducts wrist

Extensor digitorum

extends wrist and fingers

extensor carpi radialis (longus)

extends and abducts wrist

Psoas major

flexes thigh and flexes trunk on femur (hip joint)

Iliacus

flexes thigh and flexes trunk on femur (hip joint)

Gluteus maximus

extends and laterally rotates thigh (hip joint)

Gluteus medius

abducts and medially rotates thigh (hip joint)

Gluteus minimus

Abducts and medially rotates thigh (hip joint)

Tensor fasciae latae

flexes, abducts and medially rotates thigh (hip joint) (laterally supports knee)

Piriformis

laterally rotates and abducts thigh (hip joint)

Obturator internus

laterally rotates and abducts thigh (hip joint)

Adductor magnus

adducts and laterally rotates thigh (hip joint)

Adductor longus

adducts and laterally rotates thigh (hip joint)

Adductor brevis

adducts and laterally rotates thigh (hip joint)

Pectineus

adducts and flexes thigh (hip joint)

Gracilis

adducts thigh/hip and flexes leg/knee

Sartorius

flexes thigh and leg/knee and laterally rotates thigh/hip

Rectus femoris

extends leg/knee and flexes thigh/hip

Semitendinosus

flexes leg/knee and extends thigh/hip

Semimembranous

flexes leg/knee and extends thigh/hip

Biceps femoris (long head)

flexes leg/knee and extends thigh/hip

Biceps femoris (short head)

flexes leg/knee

Vastus lateralis

extends leg/knee

Vastus medialis

extends leg/knee

Vastus intermedialis

extends leg/knee

Popliteus

flexes and rotates leg/knee

Gastrocnemius

flexes leg/knee and plantar flexes foot

Tibialis anterior

dorsiflexes and inverts foot

Extensor hallucis longus

dorsiflexes and inverts foot and extends great toe

Extensor digitorum longus

dorsiflexes and everts foot and extends toe 2-5

Peroneus (fiblularis)

plantar flexes and everts foot

Soleus

plantar flexes foot

Flexor hallucis longus

flexes great toe, plantar flexes, and inverts foot

Flexor digitorum longus

flexes toes 2-5, plantar flexes, and inverts foot