Muscles that move the elbow
The muscles that move the elbow are organized into what 2 compartments?
1) Anterior compartment 2) Posterior compartment
What 3 muscles are apart of the ANTERIOR compartment?
1) Biceps brachii 2) Brachialis 3) Brachioradialis
What are the 5 muscles that move the elbow?
1) Biceps brachii 2) Brachialis 3) Brachioradialis 4) Triceps brachii 5) Anconeus
What 2 muscles are apart of the POSTERIOR compartment?
1) Triceps brachii 2) Anconeus
Which muscle that moves the elbow is deep to the biceps brachii and lies on the anterior surface of the humerus?
Brachialis
Which muscle? Origin: - Anterior surface of distal humerus Insertion: - Ulnar tuberosity Action: - Elbow flexion Innervation: - Musculocutaneous N.
Brachialis
Which muscle that moves the elbow is a prominent muscle on the lateral surface of the forearm?
Brachioradialis
Which muscle? Origin: - Lateral supracondylar ridge Insertion: - Radial styloid process Action: - Elbow flexion Innervation: - Radial N.
Brachioradialis
Which muscle that moves the elbow is a weak elbow extensor that crosses the posterolateral region of the elbow
Anconeus
Which muscle? Origin: - Lateral epicondyle of humerus Insertion: - Olecranon process Action: - Elbow extension Innervation: - Radial N.
Anconeus
Which muscle that moves the elbow is a large, two-headed muscle on the anterior surface of the humerus?
Biceps brachii
Which muscle? Origin: - Supraglenoid tubercle (long head) - Coracoid process (short head) Insertion: - Radial tuberosity Action: - Shoulder flexion - Elbow flexion - Supination Innervation: - Musculocutaenous N.
Biceps brachii
Which muscle that moves the elbow is the large, three-headed muscle on the posterior surface of the arm. It is the prime extensor of the forearm.
Triceps brachii
Which muscle? Origin: - Long: infraglenoid tubercle - Lateral: posterior humerus - Medial: posterior humerus Insertion: - Olecranon process Action: - Shoulder extension (long head only) - Elbow extension Innervation: - Radial N.
Triceps brachii
The two compartments are surrounded by what?
deep fascia
The posterior compartment primarily houses muscles that are responsible for what motion of the elbow?
extension
The anterior compartment of the arm primarily contains muscles that are responsible for what motion of the elbow?
flexion
