This document discusses different muscles of the thorax and forelimbs, including the external oblique, latissimus dorsi, serratus ventralis, internal intercostals, serratus dorsalis, and various muscles of the forelimbs like the epitrochlearus, brachioradialis, biceps brachii, triceps brachii, brachialis, and the three heads of the triceps muscle. Specific muscles are identified on both the medial and lateral views of the forelimbs.