1. THE ELBOW: Bones and Actions

2. TERMINOLOGY Proximal and Distal Medial and Lateral
Superior and Inferior
Ligament and Tendon
Condyle – large round projection
Epicondyle – a projection located above a condyle
Fossa- hollow, depression or flattened surface
Tubercle - small round projection
*Supination – external rotation of the radius
*Pronation – internal rotation of the radius

3. BONES
Medial View

4. BONES
Scapula
Humerus
Radius
Ulna

5. RADIUS

6. ULNA
Trochlear Notch

7. HUMERUS

8. SCAPULA
Posterior
Anterior
Posterior

9. LANDMARKS Radius Ulna 1. Head 3. Radial tuberosity Styloid process
1. Olecranon process
2. Trochlear notch
3. Coronoid process
Styloid process

10. 1. Head
3. Radial tuberosity

11. 1. Olecranon process
2. Trochlear notch
3. Coronoid process

12. HUMERUS

13. LANDMARKS Humerus 1. Head 3. Lesser tubercle
4. Intertubercaluar groove
5. Greater tubercle
2. Lateral epicondyle
3. Captitulum
4. Trochlea
5. Medial epicondyle
7. Olecranon fosssa

15. Coracoid Process
Glenoid Cavity

16. JOINTS Humeroulnar the “elbow”; a hinge joint
Trochlea (humerus)
Trochlear notch (ulna)
Radioulnar movement of the forearm; a pivot joint
Head of radius
Ulna
Radiohumeral no true actions
Capitulum (humerus)
Head of the radius

18. LIGAMENTS
Ulnar Collateral
Radial Collateral
Annular Ligament

19. LIGAMENTS

20. ACTIONS Elbow or Humeroulnar Joint (Movement of the Ulna)
Flexion of the elbow
Extension of the elbow
Forearm or Radioulnar Joint (Movement of the Radius)
Supination of the forearm
Pronation of the forearm

21. ACTIONS
Extension

22. ACTIONS
What would be the location of a muscle that does elbow extension?
Posterior
Anterior
Humerus
What would be the location of a muscle that does elbow flexion?
Ulna
Fingers

23. ACTIONS
Pronation
Supination

24. ACTIONS

25. ACTIONS Where is the radius after pronation?
Where would a muscle need to be located in order to cause pronation?
Lateral
Medial
Supination Pronation
Palm Up Palm Down

26. ACTIONS Where is the radius after supination?
Lateral
Medial
Where is the radius after supination?
Where would a muscle need to be located in order to cause supination?
Supination Pronation
Palm Up Palm Down

27. What position is his left elbow in?
What position his right elbow in? His right forearm? His left elbow?
What position is his right forearm in? What is his name?

28. What positions are her right elbow and forearm in?
What positions are her left elbow and forearm in?