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The symphysis of the external surface of the mandible divides below and encloses a triangular eminence, the mental protuberance, the base of which is depressed in the center but raised on either side to form the mental tubercle. The size and shape of the bones making up this structure are responsible for the size and shape of a person's chin.
Protuberance may refer to: Mental protuberance; Occipital protuberances, of which may refer to Internal occipital protuberance; External occipital protuberance; Laryngeal protuberance, also known as Adam's apple
Near the middle of the squamous part of occipital bone is the external occipital protuberance, the highest point of which is referred to as the inion. The inion is the most prominent projection of the protuberance which is located at the posterioinferior (rear lower) part of the human skull. The nuchal ligament and trapezius muscle attach to it.
In human anatomy, the facial skeleton of the skull the external surface of the mandible is marked in the median line by a faint ridge, indicating the mandibular symphysis (Latin: symphysis menti) or line of junction where the two lateral halves of the mandible typically fuse in the first year of life (6–9 months after birth). [1]
The mandibular symphysis divides below and encloses a triangular eminence, the mental protuberance, the base of which is depressed in the center but raised on either side to form the mental tubercle. The two mental tubercles along with the medial mental protuberance are collectively called the mental trigone.
A 2018 study that was recently brought to light in articles by the BBC, Washington Post, Fortune and more claims that cell phones are causing young people to grow "horns.". The research, conducted ...
Along the internal surface of the occipital bone, at the point of intersection of the four divisions of the cruciform eminence, is the internal occipital protuberance. Running transversely on either side is a groove for the transverse sinus .
In anatomy, eminence implies a protuberance, and may refer to a variety of structures: Collateral eminence, alongside the hippocampus in the brain; Cruciform eminence, in the occipital bone of the skull; Frontal eminence, on the frontal bone of the skull; Hypothenar eminence, a group of three palmar muscles that control the pinky finger