movement anatomy exam 3

triceps insertion

olecranon process of the ulna

triceps origin

long head: infraglenoid tubercle of scapula

medial head: inferior to greater tubercle on posterior humerus

lateral head: posterior surface of humerus

radial nerve

triceps nerve

median nerve

pronator teres nerve

pronator quadratus origin

anterior distal ¼ of ulna

pronator quadratus insertion

anterior distal ¼ of radius

pronator teres insertion

lateral aspect of radius at the midpoint

pronator teres origin

medial epicondyle of humerus and coracoid process of ulna

supinator insertion

anterior surface of radius

supinator origin

posterior lateral epicondyle of humerus and adjacent ulna

biceps nerve

musculocutaneous nerve

biceps insertion

radial tuberosity of radius

biceps origin

long head: supraglenoid tubercle of scapula

short head: coracoid process of scapula

brachioradialis nerve

radial nerve

brachioradialis insertion

distal lateral aspect of radius proximate to the styloid process of radius

brachioradialis origin

lateral supracondylar ridge of the humerus

musculocutaneous nerve

brachialis nerve

brachialis insertion

coracoid process and ulnar tuberosity of the ulna

brachial origin

anterior surface of the distal ½ of the humerus

brachialis action

elbow flexion

biceps action

-shoulder flexion

-elbow flexion

-supination

brachioradialis action

-elbow flexion

-supination/pronation

triceps action

-elbow extention

-shoulder extension

anconeous origin

lateral epicondlye of humerus

anconeous insertion

lateral and inferior to triceps on olecranon process

anconeous action

-elbow flexion

-helps keep joint capsule from impingement, stabilizer

anconeous nerve

radial nerve

what muscles push

-triceps

-shoulder flexors

what muscles pull

-biceps

-shoulder extenders

pronator teres action

-elbow flexion

-pronation

pronator quadratus action

-pronatioon

-stabilizes distal radioulnar joint

supinator action

-elbow flexion

-supination