Lab Quiz 5- Muscles

Orbicularis oculi- movement- Innervation

Closes eye- cranial nerve VII

Orbicularis oris- movement- innervation

purses lips- cranial nerve VII

Masseter- Orgin- insertion- movement- innervation

Zygomatic arch- mandible- prime mover of mandible elevation- cranial nerve V

Sternocleidomastoid- origin- instertion- movement- innervation

Sternum, clavicle- mastoid process of temporal bone- flexes neck- cranial nerve V

Temporalis- movement- innervation

retracts mandible- cranial nerve V

Erector spinae group- movement

laterally flexes vertebral column

Trapezius- movement

depress and retract scapula

Rhomboid Major- movement

elevates and adducts scapula

Levator scapulae- movement- Innervation

elevates scapula- cervical nerves C3 and C4

Serratus anterior- movement

protracts scapula

Pectoralis major- origin- insertion- movement- Innervation

Clavicle, sternum, ribs- Humerus- adducts and medially rotates arm- lateral pectoral nerve (C5-C7)

Pectoralis minor- origin- insertion- movement- Innervation

Ribs- Coracoid process of scapula- protracts and depresses scapula- medial pectoral nerve (C8-T1)

Deltoid- origin- insertion- movement

Clavicle, scapula- humerus- prime mover of arm abduction

Teres major- origin- insertion- movement

scapula- lesser tubercle of humerus- adducts the arm

Teres minor- origin- insertion- movement

scapula- greater tubercle of humerus- adducts and laterally rotates arm

Latissimus Dorsi- origin- insertion- movement

vertebrae, ribs, ilium- humerus- adducts and medially rotates arm

Biceps brachii- origin- insertion- movement- Innervation

Coracoid process and glenoid cavity of scapula- radial tuberosity of radius- flexes of forearm- musculcutaneous nerve (C5-C6)

Triceps brachii- origin- insertion- movement

glenoid cavity of scapula, humerus- Olecranal process of ulna- prime mover of forearm extension

Brachioradialis- origin- insertion- movement

Lateral epicondyle of humerus- styloid process of radius- flexes forearm

Brachialis- movement

prime mover of forearm

Flexor carpi ulnaris- movement

flexes wrist

Extensor carpi ulnaris- movement

extends wrist

Flexor carpi radailis- movement

Flexes wrist

Extensor carpi radialis- movement

extends wrist

Palmaris longus- movement

flexes wrist