Lab 7: Appendicular Muscles: Muscles of the Upper Limb

Extends head, adducts scapula?

Trapezius action

Occipital bone, nuchal ligament, vertebrae of the cervical & thoracic regions?

Origin of trapezius

Clavicle, Acromion & spine of scapula?

Insertion of trapezius

Flex, extend, abducts arm?

Deltoid action

Scapular spine, acromion, clavicle?

Origin of deltoid

Humerus (deltoid tuberosity)?

Insertion of deltoid

Flexes, adducts, medially rotates the humerus?

Pectoralis major action

Clavicle, sternum, ribs?

Origin of pectoralis major

What is the insertion for both pectoralis major and latissimus dorsi?

Humerus

Extends & adducts humerus, depresses shoulders?

Latissimus dorsi action

Thoracic & lumbar vertebrae, illiac crest?

Origin of latissimus dorsi

What is A?

Trapezius

What is B?

Deltoid

What is C?

Latissimus dorsi

What is A?

Pectoralis major

What is A?

Pectoralis minor

These are part of rotator cuff, and helps stabilize shoulder joint?

Supraspinatus, infrapinatus, subscapularis, and teres minor

Supraspinatus, infrapinatus, subscapularis, teres minor, and teres major, have what insertion?

Humerus; shoulder

Extends humerus?

Teres major action

Supraspinous fossa of scapula?

Origin of supraspinatus

Infraspinous fossa of scapula?

Origin of infraspinatus

Subscapular fossa of scapula?

Origin of subscapularis

Lateral border of scapula?

Origin of teres minor

Inferior angle of scapula?

Origin of teres major

What ia A?

Supraspinatus

What is B?

Infraspinatus

What is C?

Teres minor

What is D?

Teres major

What is E?

Subscapularis

Flexes arm & forearm?

Biceps Brachii action

2 heads: both on scapula?

Origin of biceps brachii

Radial tuberosity?

Insertion of biceps brachii

Extends arm & forearm?

Triceps brachii action

3 heads: 1 on scapula, 2 on humerus?

Origin of triceps brachii

Olecranon of ulna?

Insertion of triceps brachii

Flexes arm?

Coracobrachialis action

Coracoid process of scapula?

Origin of coracobrachialis

Humerus (midmedial shaft)?

Insertion of coracobrachialis

Flexes forearm?

Brachialis and brachioradialis

What is the origin of brachialis and brachioradialis?

Humerus; arm

Ulna (coracoid process)?

Insertion of brachialis

Radius?

Insertion of brachioradialis

Triceps brachii is an ______ to the biceps brachii

antagonist

What is A?

Triceps brachii

What is B?

Biceps brachii

What is C?

Brachialis

What is A?

Coracobrachialis

What is B?

Brachioradialis

Supinates forearm?

Supinator action

Pronates forearm?

Pronator quadratus and teres action

Anchors skin & fascia of palmar region?

Palmaris longus action

Flex wrist?

Flexor carpi radialis and ulnaris

Flexes wrist & phalanges?

Flexor digitorum superficialis and profundus action

Flexes thumb?

Flexor pollicis longus action

What is A?

Supinator

What is B?

Pronator teres

What is C?

Pronator quadratus

What is A?

Flexor carpi radialis

What is B?

Palmaris longus

What is C?

Flexor carpi ulnaris

What is A?

Flexor digitorum superficialis

What is B?

Flexor digitorum profundus

What is C?

Flexor pollicis longus

Extensor carpii radialis longus & brevis, and extensor carpii ulnaris, have what action in common?

Extends wrist

Extends phalanges and hand?

Extensor digitorum action

Abducts thumb?

Abductor pollicis longus action

Extends thumb?

Extensor pollicis longus & brevis action

What is A?

Extensor carpi ulnaris

What is B?

Extensor carpi radialis longus

What is C?

Extensor carpi radialis brevis

What is D?

Extensor digitorum

What is A?

Extensor pollicis longus

What is B?

Abductor pollicis longus

What is C?

Extensor pollicis brevis