MICROANATOMY

Detailed explanation-1: -A lateral orientation is a position away from the midline of the body. For instance, the arms are lateral to the chest, and the ears are lateral to the head.

Detailed explanation-2: -Lateral means to the side of, or away from, the middle of the body. Examples: The ears are lateral to the nose. The arms are lateral to the chest.

Detailed explanation-3: -The lateral aspect of the upper arm is supplied by the upper lateral cutaneous nerve (a branch of the axillary nerve) and the lower lateral cutaneous nerve (a branch of the radial nerve). The posterior aspect is supplied by the posterior cutaneous nerve of the arm, a branch of the radial nerve (Fig. 45.15, Fig. 45.14).