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The mandibular notch can be found in other mammals, such as dogs and cats. [1] There can be significant variation in its shape even within the same species. [3] Archaeological evidence shows that the mandibular notch is different in other hominidae, such as neanderthals, and may be asymmetrical.
The antegonial notch is a subtle indentation located on the inferior border of the mandible, immediately anterior to the angle of the mandible. It marks the transition between the inferior border of the mandibular body and the anterior border of the mandibular ramus .
It passes laterally superior to the lateral pterygoid muscle, anterior to the temporomandibular joint, and posterior to the tendon of the temporalis muscle.It crosses (the posterior portion of) the mandibular notch alongside the masseteric artery before branching out upon the surface of the masseter muscle, then entering the muscle.
Its posterior border is concave and forms the anterior boundary of the mandibular notch. The lateral surface is smooth, and affords insertion to the temporalis and masseter muscles. Its medial surface gives insertion to the temporalis, and presents a ridge which begins near the apex of the process and runs downward and forward to the inner side ...
The masseteric artery is small and passes laterally through the mandibular notch to the deep surface of the masseter muscle, which it supplies. It anastomoses with the masseteric branches of the external maxillary artery and with the transverse facial artery. Branches of the maxillary artery
The condyloid process or condylar process is the process on the human and other mammalian species' mandibles that ends in a condyle, the mandibular condyle.It is thicker than the coronoid process of the mandible and consists of two portions: the condyle and the constricted portion which supports it, the neck.
The mandibular notch, separating the two processes, is a deep semilunar depression and is crossed by the masseteric vessels and nerve. German illustration with jawbones cut away to show the inferior alveolar nerve branching to the mandible's dental alveoli and passing through the mental foramen
A mandibular fracture in the angle region may also be the cause of a pterygomandibular space infection. [ 1 ] The signs and symptoms of an isolated pterygomandiublar infection may include trismus (difficulty opening the mouth), however there is not usually any externally visible facial swelling. [ 1 ]