Forehead: High, square, wide, short, round, or narrowįor precise measurements, use a tape measure, but there are also plenty of face shape apps to help you… Apple App Store & Google Play 7 Different Face Shapes.Chin: Pointed chin, square chin, or chin length.To find your head shape, consider these determining factors: Head shapes are determined by the sum of all your facial features and skeletal structure. There are several main head shapes, including oval, square, round, heart, triangle, diamond, oblong, and inverted triangle.ĭo you have a square or egg-shaped head? Do you have a perfect shaped head?Let’s find out what shape you have! Use our head shape reference guide to discover all the different head shapes. Your head and face shape can be determined by looking at your jawline, cheeks, forehead, head width, and head height. No one has a perfect oval or heart-shaped face, and even if you did, your hairstyle and facial hair can always be styled to suit your face shape. Human teeth have thick enamel, an adaption for chewing tougher food.Everyone’s head shape is unique and it will influence your grooming efforts, whether man or woman. The teeth of apes tend to have thinner enamel, an adaption to eating fruit. As the males compete for females, larger canines are selected for. In many apes the canines are considerably larger in males than females. Apes also have a much '''larger grinding surface on their molars''' to process leafy and fibrous plant material.In humans the canines are roughly the same size in the two sexes. While some apes do eat meat their diet is predominantly vegetarian and these teeth may have played a more significant role in defence. Canines are generally much larger in males (sexual dimorphism) suggesting that they primarily used for dominance displays between males competing for females.Īpes have much '''larger canines''' and '''incisors'''. This gap accommodates the enlarged lower canines. Apes have a much more '''U''' shaped dental arcade while humans have more '''V''' shaped dental arcade.Īpes have a gap known as the diastema between the upper incisors and canines. The dental arcade is the shape made by the rows of teeth in the upper jaw. In humans a chin has developed to protect a weak point in our less robust skulls. This is associated with a more primitive diet consisting of leaves and fibrous plants that need to be ground down. =Summary of the differences in the skull= It is absent or greatly reduced in most Hominins (with the notable exception of the Paranthropus genus). The sagittal crest serves primarily for attachment of the temporalis muscle, which is one of the main chewing muscles. The presence of this ridge of bone indicates that there are exceptionally strong jaw muscles. The Sagittal Crest is a ridge of bone running lengthwise along the midline of the top of the skull. The brow ridge was one of the last traits to be lost in the path to modern humans Without this reinforcement the eye sockets would collapse. In Apes they are much larger due to the tremendous strain put on the cranium by their temporal (jaw) muscles. Its purpose is to reinforce the weaker bones of the face (reduces vertical stress). This is a bony ridge located above the eye sockets. They are much larger in apes to accommodate much larger temporal muscles. They provide a gap for the temporal muscles to pass through (see above). These are a bony arch just behind the cheeks. This probably corresponded to a much more primitive diet that included a lot more fibrous plant material that needed to be ground down. The temporal area is where these muscles attach onto the skull. These are the muscles that pull up the jaw (bite). Apes have very large nuchal areas and associated neck muscles because greater muscle strength is required keep the skull looking forward when the spine is attached further to the rear of the skull. This is the area where the neck muscles attach onto the back of the skull, to keep it balanced on the spinal column / looking forward. The bones of the skull that balance on the vertebra / spine, called '''occipital condyles''' show the same trend (at the rear of the skull in apes, central in humans) In humans, the foramen magnum is at the '''fulcrum''' (balance point). The foramen magnum is towards the back of the skull in apes, whose posture was not fully upright. This is the hole at the base of the skull where the spinal cord enters the brain. This is common in early Hominins also, but later Hominins have a much flatter face. '''Prognathism''': Apes have a pronounced muzzle, the teeth protrude out from their face. This is an indication of their brain size. '''Cranial Capacity''': Hominins have a larger cranial capacity (apes have a cranial capacity of approx '''400cm^3^''' compared with '''1400cm^3^''' in humans).
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