Elbow and Forearm Flashcards
Biceps Brachii
Origin:
SH-Corocoid Process
LH-Supraglenoid Tubercle
Insertion: radial tuberosity
Function: flexion of elbow, supination of forearm
Triceps Brachii
Origin:
LoH-Inraglenoid Tubercle
LaH-Posterior aspect of humerus
SH- Posterior aspect of humerus
Insertion: Olecranon Process
Function: Extension of Elbow
Brachialis
Origin: Lower anterior surface of humerus
Insertion: Coronoid Process of ulna
Function: Flexion of Elbow
Brachioradialis
Origin: Above LATERAL epicondyle of humerus
Insertion: Styloid Process of Radius
Function: Flexion of Elbow (when arm is semi-pronated)
Anconeus
Origin: LATERAL Epicondyle of Humerus
Insertion: Olecranon Process and Posterior Surface of Ulna
Function: Extension of Elbow
Pronator Quadratus
Origin: anterior distal surface of ULNA
Insertion: anterior distal surface of RADIUS
Function: Pronation of Forearm
Pronator Teres
Origin: MEDIAL epicondyle of humerus and coronoid process of ulne
Insertion: midshaft of RADIUS
Function: Pronation of Forearm and Flexion of Elbow
Supinator
Origin: LATERAL epicondyle of humerus
Insertion: anterior aspect of radius
Function: Supination of Forearm
Flexion of Elbow
Agonist
- Biceps Brachii
- Brachialis
- Brachioradialis
- Pronator Teres
Antagonist
- Triceps Brachii
- Anconeus
Extension of Elbow
Agonist
- Triceps Brachii
- Anconeus
Antagonist
- Biceps Brachii
- Brachialis
- Brachioradialis
- Pronator Teres
Pronation
Agonist
- Pronator Teres
- Pronator Quadratus
Antagonist
- Supinator
- Biceps Brachii
Supination
Agonist
- Supinator
- Biceps Brachii
Antagonist
- Pronator Teres
- Pronator Quadratus