OTD 512 Midterm Elbow and Forearm

Origin of Biceps Brachii (Long Head)

Supraglenoid tubercle of scapula

Origin of Biceps Brachii (Short Head)

Coracoid process of scapula

Insertion of Biceps Brachii

Radial tuberosity and bicipital aponeurosis

Nerve Innervation of Biceps Brachii

Musculocutaneous C5 and C6

Movement of Biceps Brachii

Elbow Flexion

Forearm Supination

Shoulder Flexion

Origin of Brachialis

Distal half of anterior surface of humerus

Insertion of Brachialis

Ulnar tuberosity and coronoid process of ulna

Nerve Innervation of Brachialis 

Musculocutaneous, small branch from radial C5 and C6

Movement of Brachialis

Elbow Flexion

Origin of Brachioradialis

Proximal two-thirds of the lateral supracondylar ridge of humerus

Insertion of Brachioradialis

Radial styloid

Nerve Innervation for Brachioradialis

Radial C5 to C6

Movement of Brachioradialis

Elbow Flexion

Assist to pronate and supinate forearm

Origin of Coracobrachialis

Coracoid process of the scapula C

Insertion of Coracobrachialis

Medial Surface of mid-humeral shaft

Nerve Innervation of Coracobrachialis

 Musculocutaneous C6 and C7

Movement of Coracobrachialis

Shoulder Flexion

Shoulder Adduction

Origin of Triceps Brachii

Long head: Infraglenoid tubercle of the scapula

Lateral head: Posterior surface of proximal half of the humerus

Medial head: Posterior surface of distal half of the humerus

Insertion of Triceps Brachii

Olecranon process of the ulna

Nerve Innervation of Triceps Brachii

Radial C6 to C8, T1

Movement of Triceps Brachii

All heads: Elbow Extension

Long head:Shoulder extension, Shoulder ADDuction

Origin of Anconeus

Lateral Epicondyle of the Humerus

Insertion of Anconeus

Olecranon process and posterior, proximal surface of ulna

Nerve Innervation of Anconeus

Radial C7 and C8

Movement of Anconeus

Elbow extension

Origin of Supinator

Lateral epicondyle of humerus, radial collateral ligament, annular ligament, and supinator ulnar crest

Insertion of Supinator

Anterior, lateral surface of proximal one-third of radial shaft

Nerve Innervation of Supinator

Radial C5 to C7

Movement of Supinator

Forearm Supination

Origin of Pronator Teres

Common flexor tendon from medial epicondyle of  humerus and coronoid process of the ulna

Insertion of Pronator Teres

Middle of lateral surface of the radius

Nerve Innervation of Pronator Teres

Median C6 and C7

Movement of Pronator Teres

Forearm Pronation

Assist to Elbow Flexion

Origin of Pronator Quadratus

Medial, anterior surface of distal ulna

Insertion of Pronator Quadratus

 Lateral, anterior surface of distal radius

Nerve Innervation of Pronator Quadratus

Median C7 and C8, T1

Movement of Pronator Quadratus

Forearm Pronation