combo exam 4

pectoralis major (origin)

O: sternal (extension)/clavicle head (flexion)

Anterior Deltoid (origin)

O: lateral clavicle

biceps brachii (origin)

O (LH): supraglenoid tubercle of scapula

O (SH): coracoid process of scapula

Coracobrachialis (origin)

O: coracoid process of scapula

pectoralis minor (origin)

O: anterior surface of ribs

Trapezius (origin)

O: spinous processes of thoracic vertebrae/external occipital protuberance

middle deltoid (origin)

O: acromion process

posterior deltoid (origin)

O: spine of scapula

latissimus dorsi (origin)

O: spinous process of thoracic and lumbar vertebrae via thoracolumbar fascia

levator scapulae (origin)

O: transverse processes of cervical vertebrae

rhomboids (origin)

O: C7 and thoracic vertebrae

serratus anterior (origin)

O: anterolateral ribs

Supraspinatus (origin)

O: supraspinous fossa

Infraspinatus (origin)

O: infraspinous fossa

subscapularis (origin)

O: subscapular fossa

teres minor (origin)

O: lateral border of scapula

teres major (origin)

O: inferior angle of scapula

triceps brachii (long head)

O: infraglenoid tubercle of scapula

pectoralis major (insertion)

I: lateral lip of inter tubercular groove

pectoralis major (function)

Function: flexion, extension, adduction, medial rotation

anterior deltoid (insertion)

I: deltoid tuberosity of humerus

anterior deltoid (function)

Function: flexion, medial rotation

biceps brachii (insertion)

I: radial tuberosity

biceps brachii (function)

Function: flexion

coracobrachialis (insertion)

I: anteromedial humerus

Coracobrachialis (function)

Function: flexion, adduction

pectoralis minor (insertion)

I: coracoid process

pectoralis minor (function)

Function: protraction, depression, downward rotation

trapezius (insertion)

I: lateral third of clavicle, acromion process, spine of scapula

trapezius (function)

Function: upward rotation, elevates scapula (upper), retracts scapula (middle), depresses scapula (lower)

middle deltoid (insertion)

I: deltoid tuberosity of humerus

middle deltoid (function)

Function: abduction

posterior deltoid (insertion)

I: deltoid tuberosity of humerus

posterior deltoid (function)

Function: extension, lateral rotation

latissimus dorsi (insertion)

I: medial lip of intertubercular groove

latissimus dorsi (function)

Function: extension, adduction, medial rotation

levator scapulae (insertion)

I: superior angle of scapula

levator scapulae (function)

Function: elevation, downward rotation

rhomboids (insertion)

I: medial border of scapula

rhomboids (function)

Function: scapular retraction, downward rotation, elevation

serratus anterior (insertion)

I: medial border and inferior angle of scapula

serratus anterior (function)

Function: protraction, upward rotation

supraspinatus (insertion)

I: greater tubercle of humerus

supraspinatus (function)

Function: abduction

infraspinatus (insertion)

I: greater tubercle

infraspinatus (function)

Function: lateral rotation

subscapularis (insertion)

I: lesser tubercle of humerus

Subscapularis (function)

Function: medial rotation

teres minor (insertion)

I: greater tubercle

teres minor (function)

Function: lateral rotation

teres major (insertion)

I: medial lip of intertubercular groove

teres major (function)

Function: extension, adduction, medial rotation

triceps brachii (insertion)

I: olecranon process

triceps brachii (function)

Function: shoulder extension

brachialis (origin)

distal anterior humerus

brachialis (insertion)

ulnar tuberosity

brachialis (function)

flexion of elbow

brachioradialis (origin)

lateral suracondylar ridge of humerus

brachioradialis (insertion)

styloid process of radius 

Brachioradialis (function)

flexion

triceps brachii (lateral head origin)

proximal post lateral humerus

triceps brachii (medial head origin)

distal posteromedial humerus

triceps brachii (insertion)

olecranon process of ulna

Anconeous (origin)

lateral epicondyle of humerus

Anconeus (insertion)

olecranon process of ulna

anconeus function

extension

pronator teres (origin)

medial epicondyle of humerus and coronoid process of ulna

pronator teres (insertion)

middle lateral radius

pronator teres (function)

pronation and flexion

flexor carpi radialis (origin)

medial epicondyle of humerus

flexor carpi radialis (insertion)

base of second and third metacarpals

flexor carpi radialis (function)

wrist flexion and radial deviation

palmaris longus (origin)

medial epicondyle of humerus

palmaris longus (insertion)

palmar aponeurosis

palmaris longus (function)

wrist flexion

flexor carpi ulnaris (origin)

medial epicondyle of humerus

flexor carpi ulnaris (insertion)

pisiform, hook of hamate, base of 5th metacarpal

flexor carpi ulnaris (function)

wrist flexion, ulnar deviation

flexor digitorum superficialis (origin)

medial epicondyle of humerus

flexor digitorum superficialis (insertion)

middle phalanx of the 4 fingers

flexor digitorum superficialis (function)

flexes proximal interphalangeal joints (2-5), wrist flexion

flexor digitorum profundus (origin)

ulna and interosseous membrane

flexor digitorum profundus (insertion)

distal phalanx of 4 fingers

flexor digitorum profundus (function)

-Flexion of DIP joints of index, middle, ring and little fingers

-Assists in flexion of PIP and MCP joints

-Assists in wrist flexion

flexor pollicis longus (origin)

Middle of anterior radius and interosseous membrane

flexor pollicis longus (insertion)

distal phalanx of thumb

flexor pollicis longus (function)

flexion of thumb interphalangeal (IP) joint

pronator quadratus (origin)

distal anterior ulna

pronator quadratus (insertion)

distal anterior radius

pronator quadratus (function)

pronation

extensor carpi radialis longus and brevis (origin)

lateral supracondylar ridge of humerus/ lateral epicondyle of of humerus

extensor carpi radialis longus and brevis (insertion)

base of 2nd (longus) and 3rd (brevis) metacarpal

extensor carpi radialis longus and brevis (function)

wrist extension/hyperextension + radial deviation

extensor digitorum (origin)

lateral epicondyle of humerus

extensor digitorum (insertion)

middle and distal phalanges 2-5

extensor digitorum (function)

extension

extensor digiti minimi (origin)

lateral epicondyle of humerus

extensor digiti minimi (insertion)

middle and distal phalanges of 4 fingers

extensor digiti minimi (function)

extension of pinky

extensor carpi ulnaris (origin)

lateral epicondyle of humerus