Cat Muscles - pectoantebrachialis (there is NO equivalent in humans)

The probe is pointing to the pectoantebrachialis muscle.

Description of pectoantebrachialis - a thin, straplike muscle that is superior to (vertically above) the pectoralis major muscle. This muscle is NOT found in humans, and there is not analogous muscle to it in humans either.

Function of pectoantebrachialis - just like the xiphihumeralis, pectoralis major, and pectoralis minor, this muscle helps draw the arm to the chest.