<prompt> Dangerous area of scalp is ?Superficial fasciaLoose areolar tissuePericraniumAponeurosis  <response>: Ans. is b i.e., Loose areolar tissueThe scalp consists of five layers:SkinClose network of connective tissue superficial fasciaAponeurosis galea aponeurotica with occipitofrontalis musclesLoose areolar subaponeurotic tissuePericranium outer periosteum of skullFirst three layers are intimately connected and move as one unit, and are called surgical layers of scalp or scalp proper.Loose subaponeurotic areolar tissue 4th layer is called dangerous area of scalp because it contains emissary veins through which infection in subaponeurotic space may spread readily to intracranial venous sinuses. 