Pseudo-Aristotle, in Physiognomica, stated that the forehead is governed by Mars. Wells in 1942, "can hardly be said to have any forehead at all, and in natural total idiots it is very diminished". "Animals, even the most intelligent of them,", wrote Samuel R. In physiognomy and phrenology, the shape of the forehead was taken to symbolise intellect and intelligence. The procerus muscles cause the nose to wrinkle. The occipitofrontalis muscles produce the transverse wrinkles across the width of the forehead, and the corrugator supercilii muscles produce vertical wrinkles between the eyebrows above the nose. The movements of the muscles in the forehead produce characteristic wrinkles in the skin. The procerus muscles can pull down the centre portions of the eyebrows. The corrugator supercilii muscles can pull the eyebrows inwards and down, forming a frown. The occipitofrontalis muscles can raise the eyebrows, either together or individually, forming expressions of surprise and quizzicality. There are four basic motions, which can occur individually or in combination to form different expressions. The muscles of the forehead help to form facial expressions. īlood supply to the forehead is via the left and right superorbital, supertrochealar, and anterior branches of the superficial temporal artery. The other part, the deep division, runs into the occipitofrontalis muscle and provides frontoparietal sensation.
#WHY IS THERE A VEIN IN THE MIDDLE OF MY FOREHEAD SKIN#
This provides sensation for the skin of the forehead, and for the front edge of the scalp. One part, the superficial division, runs over the surface of the occipitofrontalis muscle. The ophthalmic branch of the trigeminal nerve, the supraorbital nerve, divides at the orbital rim into two parts in the forehead. The motor nerves of the forehead connect to the facial nerve. The sensory nerves of the forehead connect to the ophthalmic branch of the trigeminal nerve and to the cervical plexus, and lie within the subcutaneous fat. The overlying muscles are the occipitofrontalis, procerus, and corrugator supercilii muscles, all of which are controlled by the temporal branch of the facial nerve. The bone of the forehead is the squamous part of the frontal bone.