1. Upper limb Muscles of Arm, cubital fossa, and elbow joint
Dr.Nivin Sharaf MD M.B.BCH

2. Objectives
-Identify the following structures: humerus (medial & lateral epicondyles, lateral condyle (capitulum), medial condyle (trochlea), radius (head, styloid process, tuborosity), ulna (olecranon, coronoid process, styloid process)
-Describe the movements of flexion and extension of the elbow joint.
-Describe the articulation of the elbow joint with the radius and ulna.
-Explain where you would aspirate a joint effusion.
-Describe the course of neurovascular structures in the arm (brachial artery and vein, nerves - medial, ulnar and radial), and their relation in the cubital fossa
-Name and identify the anatomical region of the cubital fossa (location, boundaries)

3. Surface
Anatomy

4. Surface anatomy

5. .

6. Bony Skeleton

7. Humerus and Scapula (Ant)

8. Humerus and Scapula (Post)
Humeral Head
Supra scapular
Fossa
Humeral Neck
Anatomical
Humeral Neck
Surgical
Infra scapular
Fossa
Radial groove
Inferior
Angle
Medial epicondyle

9. Humerus and Scapula (Post)
Humeral Head
Supra scapular
Fossa
Humeral Neck
Anatomical
Humeral Neck
Surgical
Infra scapular
Fossa
Radial groove
Inferior
Angle
Medial epicondyle

10. Elbow joint

11. Ligaments of Elbow

12. ELBOW= hinge jt.
Humerus:
medial & lateral epicondyles,
lateral condyle (capitulum),
medial condyle (trochlea)
-coronoid fossa
-olecranon fossa
Radius:
-head,
-tuborosity (biceps insertion)
Ulna:
-olecranon,
-coronoid process
- tuborosity (brachialis insertion)
Fibrous capsule of the elbow joint.
Strong collateral ligaments on
each side.
- Annular ligament encircles radial
head

13. Triceps tendon
Cubital tunnel syndrome

14. Muscles

15. Anterior arm Mainly Flexors BBC Brachialis Biceps Coraco brachialis
Nerve Supply!
Musculo Cutaneous Nerve

16. Posterior arm

17. Arm muscles

18. Cubital Fossa
Surface Anatomy

19. Cubital fossa. Roof of cubital fossa. – anterior to the elbow
-superficial veins:
Median Cubital v.
Cephalic v.
Basilic v.
Floor of cubital fossa.
- Brachialis m
- Supinator m
- Radial nerve: deep branch
(muscular, articular)
superficial branch (cutaneous)
Cubital fossa.
– anterior to the elbow
Boundaries:
Epicondyles *
(medial & lateral)
- Pronator Teres
Brachioradialis
Contents:
- Brachial a
(radial / ulnar aa)
- Biceps tendon
& aponeurosis
- Median n

20. Cubital Fossa
Identify the borders of the cubital fossa: Brachioradialis m. laterally, Pronator teres medially and Brachialis which forms the floor of the fossa.

21. Cubital Fossa Contents
Lateral to medial, the Bicipital tendon, the Brachial artery, and the Median nerve. The Brachial veins may be removed. You should look for the branching of the Brachial a. into Radial and Ulnar aa. and the Superficial branch of the Radial nerve running underside Brachioradialis muscle

22. Course of nerves in anterior and posterior arm.

23. Brachial Plexus
Randy Travis Drinks Cold Tea

24. Axilallry N and Radial N
Axillary nerve supplies
Deltoid muscle
Teres Minor
Skin over deltoid
Axillary nerve
Radial Nerve
Radial Nerve
Supplies all the extensors +
Brachio Radialis
Posterior View

25. Median Nerve Supplies all the flexors of the arm except
Flexor Carpi Radialis (Radial N)
Flexor Carpi Ulnaris (Ulnar N)
Medial ½ of FDP

26. Radial Nerve

27. Brachial Plexus

29. Links

30. References Google images Netter Anatomy Atlas
University of Washington website
Bing Images
Yahoo Images

31. 1. Deltoid: scapula/clavicle to humerus- abducts arm
2. Levator scapulae: C-vertebrae to scapula- elevates scapula
3. Infraspinatus: lower scapular spine to humeral head- lateral rotation of humerus
4. Teres major: scapula to anterior humerus- medial rotation of humerus'
5. Teres Minor: scapula to posterior humerus- lateral rotaion of humerus
6. Supraspinatus: upper scapular spine to humeral head- abducts humerus
7. Trapeziues: Vertebrae/Occipital to scapula/clavicle- abduct arm, rotate, abduct scapula
8. Rhomboidius: T-vertebrae to scapula- raise/adduct scapula
9. Latissimus Dorsi: T-, L-, S- vertebrae to humerus- extend/adduct arm
10. Biceps: scapula to radius- flex elbow
11. Triceps: scapula/humerus to ulna- extend elbow
12. Pronator: Medial humerus to radius- medial rotation of forearm (pronation)
13. Flexor carpi radialis: medial humerus to 2nd/3rd metacarpal- flex/abduct hand
14. Flexor Digitorum: medial humerus/ulna to phalanges- flex fingers
15. Extensor carpi ulnaris: lateral humerus to 5th metacarpal- extend/adduct hand
16. Extensor digitorum: lateral humerus to phalanges- extend fingers
17. Extensor carpi radialis: lateral humerus to 2nd/3rd metacarpal- extend/adduct hand