NEET PG DENTAL EXAM

Detailed explanation-1: -The supratrochlear vein originates on the forehead, where it drains the superficial muscles and skin of the forehead and the front of the scalp supplied by the supratrochlear artery into the angular vein; there is no associated lymph tissue.

Detailed explanation-2: -The vascular supply to the scalp comes from the common carotid artery, posterior intercostal arteries, and the terminal branches of the subclavian artery.

Detailed explanation-3: -The occipital artery and vein supply blood flow and drainage, and the occipital lymph nodes and vessels drain lymph. The posterior auricular nerve innervates it; the facial nerve innervates the remainder of the occipitofrontalis.