1. Humeroulnar Joint (Elbow)
Presented by
Joy and Misty

2. Anterior Surface Anatomy
Cubital Fossa
Medial Bicipital line

3. Posterior Surface Anatomy
Lateral Epicondyle

4. Hinge joint- simple joint where the articulating surfaces allow for motion in only one direction
Pivot Joint- allows one bone to rotate around another bone

5. Synovial joint- capsule that contains synovial fluid which nourishes articular cartilage and lubricating the articulating surfaces. Synovial joints are usually reinforced by accessory ligaments

6. Ligaments
A ligament is a strip or sheet of tough collagenous connective tissue that attaches a muscle to a bone.

7. Bursa- A fibrous sac filled with synovial fluid located between adjacent muscles or where a tendon passes over a bone

8. Trochlear Notch
Ulnar Tuberosity

11. Infraglenoid tubercle
Muscles of Extension
Triceps brachii
Long head
Infraglenoid tubercle
of the scapula O
Lateral head
Inferior to greater
Tubercle on
posterior humerus O O
Medial head
Posterior surface
of humerus
Radial nerve
Deep Brachial artery
All heads-
Olecranon process
of Ulna I

12. Muscles of Flexion Brachioradialis Biceps Brachialis O O
Supraglenoid tubercle
O- Long Head
lateral supracondylar ridge of humerus
O- short head
Coracoid process
scapula
Brachioradialis
Radial nerve
Radial artery
Biceps
Distal half of humerus anterior surface O
Brachialis
Musculocutaneous nerve
Brachial artery
I- styliod process radius
I- both
Radial
tuberosity
Coronoid process and ulnar tuberosity I

13. Muscles of Pronation Pronator quadratus O I O O Pronator teres I
Distal fourth
of Ulna O
Median nerve
Ulnar artery I
Distal fourth
Of radius O
Medial epicondyle of Humerus
And corinoid process of Ulna O
Median nerve
Anterior interosseous
artery
Pronator teres
(also assists in elbow flexion) I
Lateral aspect of radius at its midpoint

14. Muscles of Supination Supinator O O Biceps I I Radial nerve
Lateral
Epicondyle of
Humerus and
adjacent Ulna O O
Radial nerve
Interosseous artery
Biceps I
Anterior surface of the proximal radius
( wraps around ) I
Radial tuberosity
of radius

15. Arteries

16. Veins

17. Nerves

18. Clinical Concerns