muscle grid 2: UE

pectoralis major origin

clavicular head: clavicle
sternocostal head: sternum, first six costal cartilages, aponeurosis of external obliques muscle

pectoralis major insertion

intertubercular sulcus of humerus

pectoralis major action

flexion, adduction, and mr of shoulder. protraction of the scapula

pectoralis major innervation

lateral and medial pectoral nerve

pectoralis minor origin

ribs 3-5

pectoralis minor insertion

coracoid process of the scapula

pectoralis minor action

downward rotation, anterior tilt, depression, and protraction of the scapula

pectoralis minor innervation

medial pectoral nerve

subclavius origin

Junction of 1st rib and its costal cartilage

subclavius insertion

clavicle

subclavius action

anchors and depresses the clavicle

subclavius innervation

subclavian nerve

serratus anterior origin

ribs 1-9

serratus anterior insertion

medial border of the scapula

serratus anterior action

protraction and upward rotation of the scapula

serratus anterior innervation

long thoracic nerve

deltoid origin

anterior: clavicle
middle: acromion of scapula
posterior: spine of the scapula

deltoid insertion

deltoid tuberosity

deltoid action

anterior: flexion and mr of shoulder
middle: abd of shoulder
posterior: extension and lr of shoulder

deltoid innervation

axillary nerve

supraspinatus origin

supraspinous process of scapula

supraspinatus insertion

superior facet of the greater tubercle

supraspinatus action

abd of shoulder and acts as rotator cuff

supraspinatus innervation

suprascapular nerve

infraspinatus origin

infraspinous process of scapula

infraspinatus insertion

middle facet of the greater tubercle of the humerus

infraspinatus action

LR of shoulder and acts as a rotator cuff

infraspinatus innervation

suprascapular nerve

teres minor origin

lateral border of the scapula

teres minor insertion

inferior facet of the greater tubercle of the humerus

teres minor action

LR of shoulder and acts as a rotator cuff

teres minor innervation

axillary nerve

teres major origin

inferior angle of the scapula

teres major insertion

intertubercular sulcus of humerus

teres major action

ADD, MR of shoulder

teres major innervation

lower subscapular nerve

subscapularis origin

subscapular fossa

subscapularis insertion

lesser tubercle of humerus

subscapularis action

MR of shoulder and acts as a rotator cuff

subscapularis innervation

lower and upper subscapular nerve

biceps brachii origin

short head: coracoid process of the scapula
long head: supraglenoid tubercle of the scapula

biceps brachii insertion

radial tuberosity

biceps brachii action

flexion of the elbow
long: flex shoulder

biceps brachii innervation

musculocutaneous nerve

coracobrachialis origin

coracoid process of the scapula

Coracobrachialis insertion

humerus

coracobrachialis action

flex and add shoulder

coracobrachialis innervation

musculocutaneous nerve

brachialis origin

humerus

brachialis insertion

coronoid process and ulnar tuberosity

brachialis action

flex elbow

brachialis innervation

musculocutaneous nerve

triceps brachii origin

long head: infraglenoid tubercle of the humerus
lateral head: superior to radial groove on humerus
medial head: inferior to radial groove on humerus

triceps brachii insertion

olecranon process of ulna

triceps brachii action

extension of elbow

triceps brachii innervation

radial nerve

anconeus origin

lateral epicondyle of humerus

anconeus insertion

olecranon of ulna

anconeus action

extension of elbow

anconeus innervation

radial nerve

flexor digitorum superficialis origin

humero-ulnar head: medial epicondyle
radial head: radius

flexor digitorum superficialis insertion

middle phalanges of digits 2-5

flexor digitorum superficialis action

flex MCP and PIP of digits 2-5

flexor digitorum superficialis innervation

median nerve

flexor digitorum profundus origin

ulna and interosseous membrane

flexor digitorum profundas insertion

distal phalanges of digit 2-5

flexor digitorum profundus actions

flex DIP of digits 2-5

flexor digitorum profundus innervation

ulnar nerve and anterior inerosseous nerve

flexor pollicis longus origin

radius and interosseous membrane

flexor pollicis longus insertion

distal phalanx of 1st digit

flexor pollicis longus action

flex 1st digit

flexor pollicis longus innervation

anterior interosseous nerve

pronator quadratus origin

ulna

pronator quadratus insertion

radius

pronator quadratus action

pronates forearm

pronator quadratus innervation

anterior interosseous nerve

pronator teres origin

humeral head: medial epicondyle of humerus
ulna head: coronoid process

pronator teres insertion

radius

pronator teres action

pronate forearm

pronator teres innervation

median nerve

flexor carpi radialis origin

medial epicondyle of humerus

flexor carpi radialis insertion

2nd metacarpal

flexor carpi radialis action

flex and abd wrist

flexor carpi radialis innervation

median nerve

palmaris longus origin

medial epicondyle of humerus

palmaris longus insertion

flexor retinaculum and palmar aponeurosis

palmaris longus action

flex wrist

palmaris longus innervation

median nerve

flexor carpi ulnaris origin

humeral: medial epicondyle of humerus
ulnar head: olecranon and ulna

flexor carpi ulnaris insertion

pisiform, hook of hamate, base of 5th metacarpal

flexor carpi ulnaris action

flex and add wrist

flexor carpi ulnaris innervation

ulnar nerve

Brachioradialis origin

lateral supracondylar ridge

Brachioradialis insertion

distal radius

brachioradialis action

flex of elbow

brachioradialis innervation

radial nerve

extensor carpi radialis longus origin

lateral epicondyle of humerus

extensor carpi radialis longus insertion

2nd metacarpal

extensor carpi radialis longus action

extends and abd wrist

extensor carpi radialis longus innervation

radial nerve