13 Anatomical Spaces (Posterior Shoulder Compartment)

Question 1

What are the 3 spaces in the posterior shoulder compartment?

Answer 1

Medial triangular space

Quadrangular space

Lateral triangular space

Question 2

Which muscles form the borders for the anatomical space in the posterior shoulder?

Answer 2

Lateral and medial heads of the triceps brachii

Teres minor

Teres major

Question 3

What are the contents of the medial triangular space?

Answer 3

Circumflex scapular artery

Question 4

What are the contents of the quadrangular space?

Answer 4

Axillary nerve

Posterior circumflex humeral artery

Question 5

What are the contents of the lateral triangular space?

Answer 5

Radial nerve

Profunda brachii artery