The Wrist JointThe Wrist JointMusclesMuscles

Muscles

Elbow flexors - anterior

Elbow extensors - posterior

Forearm pronators

Forearm supinators

Biceps brachii

Location: Anterior

Origins: Coracoid process and Lip of glenoid fossa

Insertion: Radial tuberosity

Actions: Shoulder flexion, Elbow flexion and Forearm supination

Biarticular muscle

BrachialisLocation: Anterior

Origin:

Insertion: coronoid process

Action: Elbow flexion

“pure flexor”

Brachioradialis

Location: Anterior/lateral

Origin:

Insertion: Distal radius

Actions:

Elbow flexion

Forearm supination (from pronated)

Forearm pronation (from supination)

Pronator Teres

Location: Anterior/medial

Origin: Medial epicondyle

Insertion:

Actions:

Forearm pronation

Weak elbow flexion

Pronator Quadratus

Location: Anterior

Origin

Insertion

Action: Forearm pronation

Supinator

Location: Lateral

Origin

Insertion

Action: Forearm supination

Triceps

Location: posterior

Origins:

Insertion: Olecronon process

Action: Elbow extension

Anconeus

Location: posterior

Origin

Insertion:

Action: elbow extension

Anconeus

Synovial membrane

Nerves

Musculocutaneous

Anterior

Bicpes

Brachialis

Nerves

Radial nerve

Posterior

Triceps

Anconeus

Supinator

Brachioradialis

Nerves

Median nerve

Pronator teres

Pronator quad.

Artery

Brachial

Arterial blood pressure