Cat Muscles: Proximal Arm

Brachialis

anterior to the lateral head of the triceps muscle

lateral head of triceps brachii

biggest

Triceps brachii

easily identified when cat is on its side large fleshy muscle covering posterior aspect of humerus

medial head of triceps brachii

in the middle

long head of triceps brachii

inferior

Biceps brachii

large spindle-shaped muscle medial to the brachialis on the anterior surface of humerus