Today, you will add a few more muscles to your muscle knowledge arsenal, including the following: coracobrachialis, biceps brachii, brachialis, and triceps brachii.

You will also learn the strategy of learning/studying by muscle compartment, which helps to break down the content into smaller bits of information. The arm and forearm have both anterior and posterior compartments. Each compartment has distinct muscle actions and different innervation (nerve supply) and blood vessels. Focusing on o