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SCALP : Arterial Supply

In this video , I have explained about Arterial Supply of SCALP , diagrammatically. Blood supply of SCALP The blood supply of the scalp is via five pairs of arteries, three from the external carotid and two from the internal carotid: internal carotidthe supratrochlear artery to the midline forehead. The supratrochlear artery is a branch of the ophthalmic branch of the internal carotid artery.the supraorbital artery to the lateral forehead and scalp as far up as the vertex. The supraorbital artery is a branch of the ophthalmic branch of the internal carotid artery.external carotidthe superficial temporal artery gives off frontal and parietal branches to supply much of the scalpthe occipital artery which runs posteriorly to supply much of the posterior aspect of the scalpthe posterior auricular artery, a branch of the external carotid artery, ascends behind the auricle to supply the scalp above and behind the auricle. Because the walls of the blood vessels are firmly attached to the fibrous tissue of the superficial fascial layer, cut ends of vessels here do not readily retract; even a small scalp wound may bleed profusely.