Upper Limb Anatomy

Question 1

What are the attachments of the heads of the Triceps

Answer 1

Long head - Infraglenoid Tubercle
Lateral head - Humerus (superior to the medial groove)
Medial Head - Humerus (inferior to the medial groove)

All converge onto the olecranon of the ulna

Question 2

What is the blood supply to the Triceps

Answer 2

Profunda Brachii

Question 3

What is the Innervation to the Triceps

Answer 3

Radial Nerve

Question 4

Describe the Course of the radial nerve

Answer 4

Originates posterior to the axillary artery, through the triangular interval, along the radial groove, then anterior to the lateral epicondyle