Location and Function of Arm Muscles

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What is the origin of the Flexor digitorum profundus muscle? What is the insertion of the Flexor digitorum profundus muscle? What is the action of the Flexor digitorum profundus muscle?

Anterior medial surface of body of ulna. Base of distal phalanx. Flexes phalanges and hand at wrist joint.

What is the origin the Brachialis muscle? What is the insertion of the Brachialis muscle? What is the action of the Brachialis muscle?

Distal, anterior surface of humerus. Ulnar tuberosity, coronoid process of ulna. Flexes forearm at elbow.

What is the action of the Biceps brachii muscle?

Flexes forearm at elbow joint, forearm at radioulnar joints, arm at shoulder joint.

What is the origin of the lateral head Triceps brachii muscle? What is the insertion of the lateral head Triceps brachii muscle? What is the action of the lateral head Triceps brachii muscle?

Lateral and posterior surface of humerus. Olecranon of ulna. Extends forearm at elbow joint, extends arm at shoulder joint.

What is the origin of the Brachioradialis? What is the insertion of the Brachioradialis? What is the action of the Brachioradialis?

Lateral border of distal end of humerus. Superior to Styloid process of radius. Flexes forearm at elbow joint, supinate and pronates forearm

What is the origin of the Extensor carpi ulnarus? What is the insertion of the Extensor carpi ulnarus? What is the action of the Extensor carpi ulnarus?

Lateral epicondyle of humerus, posterior border of ulna. Metacarpal V. Extends and abducts hand at wrist joint.

What is the origin of the Extensor digitorum muscle? What is the insertion of the Extensor digitorum muscle? What is the action of the Extendor digitorum muscle?

Lateral epicondyle of humerus. Distal and middle phalanges. Extends phalanges and hand at wrist joint.

What is the origin of the Extensor carpi radialis brevis muscle? What is the insertion of the Extensor carpi radialis brevis muscle? What is the action of the Extensor carpi radialis brevis muscle?

Lateral epicondyle of humerus. Metacarpal III. Extends and abducts hand at wrist joint.

What is the origin of the Extensor carpi radialis longus muscle? What is the insertion of the Extensor carpi radialis longus muscle? What is the action of the Extensor carpi radialis longus muscle?

Lateral supracondylar ridge of humerus. Metacarpal II. Extends and abducts hand at wrist joint.

What is the origin of the Biceps brachii muscle?

Long head originates from tubercle above Glenoid cavity of scapula.

What is the origin of the Pronator teres muscle? What is the insertion of the Pronator teres muscle? What is the action of the Pronator teres muscle?

Medial epicondyle of humerus, coronoid process of ulna. Midlateral surface of radius. Pronates forearm, weakly flexes forearm at elbow joint.

What is the origin of the Flexor carpi ulnarus muscle? What is the insertion of the Flexor carpi ulnarus muscle? What is the action of the Flexor carpi ulnarus muscle?

Medial epicondyle of humerus, superior posterior border of ulna. Pisiform, hamate, base of metacarpal V. flexes middle and proximal phalanx, flexes hand at wrist joint.

What is the origin of the Palmaris longus muscle? What is the insertion of the Palmaris longus muscle? What is the action of the Palmaris longus muscle?

Medial epicondyle of humerus. Flexor retinaculum, palmar aponeurosis. Weakly flexes hand at wrist joint.

What is the origin of the Flexor carpi radialis? What is the insertion of the Flexor carpi radialis? What is the action of the Flexor carpi radialis?

Medial epicondyle of humerus. Metacarpals II and III. Flexes and abducts hand at wrist joint.

What is the origin of the long head Triceps brachii muscle? What is the insertion of the long head Triceps brachii muscle? What is the action of the long head Triceps brachii muscle?

Originates from infraglenoid tubercle. Olecranon of ulna. Extends forearm at elbow joint, extends arm at shoulder joint.

What is the origin of the medial head Triceps brachii muscle? What is the insertion of the medial head Triceps brachii muscle? What is the action of the medial head Triceps brachii muscle?

Posterior surface of humerus. Olecranon of ulna. Extends forearm at elbow joint, extends arm at shoulder joint.

What is the insertion of the Biceps brachii muscle?

Radial tuberosity of radius


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