Roll over mouse to name label


Arm regional video     Arm layers  links    Electronic dissector    Structure locator

Posterior arm
Layer 4- Muscles


1 infraspinatus 2 teres minor 3 teres major 4 long head of triceps brachii 5 lateral head of triceps brachii 6 axillary nerve 7 deltoid branch of profunda brachii 8 anterior circumflex humeral artery/ descending branch of posterior circumflex humeral artery to form anastomosis around the surgical neck of humerus  10 medial head of triceps brachii 11 lateral head of triceps brachii



Museum specimen

Museum diagram

Gross anatomy Museum

Click to dissect from layer of muscles of posterior arm (layer 4) to neurovascular bundle of posterior arm (layer 5)

Layer's theory

Electronic School of Medicine <>
Museum of Human Anatomy <>





Electronic School of Medicine
Creator: Oluwole Ogunranti