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  2. Digastric muscle - Wikipedia

    en.wikipedia.org/wiki/Digastric_muscle

    The digastric muscle (also digastricus) (named digastric as it has two 'bellies') is a bilaterally paired suprahyoid muscle located under the jaw.Its posterior belly is attached to the mastoid notch of temporal bone, and its anterior belly is attached to the digastric fossa of mandible; the two bellies are united by an intermediate tendon which is held in a loop that attaches to the hyoid bone.

  3. Muscles of mastication - Wikipedia

    en.wikipedia.org/wiki/Muscles_of_mastication

    The four classical muscles of mastication elevate the mandible (closing the jaw) and move it forward/backward and laterally, facilitating biting and chewing. Other muscles are responsible for opening the jaw, namely the geniohyoid , mylohyoid , and digastric muscles (the lateral pterygoid may play a role).

  4. Mastoid part of the temporal bone - Wikipedia

    en.wikipedia.org/wiki/Mastoid_part_of_the...

    The mastoid process serves for the attachment of the sternocleidomastoid, the posterior belly of the digastric muscle, splenius capitis, and longissimus capitis. On the medial side of the process is a deep groove, the mastoid notch, for the attachment of the digastric muscle ; medial to this is a shallow furrow, the occipital groove , which ...

  5. Anterior triangle of the neck - Wikipedia

    en.wikipedia.org/wiki/Anterior_triangle_of_the_neck

    Mylohyoid: by its own nerve, a branch of the inferior alveolar (from the mandibular division of trigeminal nerve), which arises just before the parent nerve enters the mandibular foramen, pierces the sphenomandibular ligament, and runs forward on the inferior surface of the mylohyoid, supplying it and the anterior belly of the digastric.

  6. Suprahyoid muscles - Wikipedia

    en.wikipedia.org/wiki/Suprahyoid_muscles

    The mylohyoid muscles are thin, flat muscles that form a sling inferior to the tongue supporting the floor of the mouth. The geniohyoids are short, narrow muscles that contact each other in the midline. [2] The stylohyoids are long, thin muscles that are nearly parallel with the posterior belly of the digastric muscle. [2]

  7. Pharyngeal arch - Wikipedia

    en.wikipedia.org/wiki/Pharyngeal_arch

    All of the pharyngeal muscles of the second pharyngeal arch are innervated by the facial nerve. These muscles include the muscles of facial expression, the posterior belly of the digastric, the stylohyoid muscle, the auricular muscle [16] and the stapedius muscle of the middle ear.

  8. Mylohyoid muscle - Wikipedia

    en.wikipedia.org/wiki/Mylohyoid_muscle

    The mylohyoid muscle is flat and triangular, and is situated immediately superior to the anterior belly of the digastric muscle. It is a pharyngeal muscle (derived from the first pharyngeal arch) and classified as one of the suprahyoid muscles. Together, the paired mylohyoid muscles form a muscular floor for the oral cavity of the mouth. [2]

  9. Masticatory force - Wikipedia

    en.wikipedia.org/wiki/Masticatory_force

    The jaw elevator muscles develop the main forces used in mastication. The force generated during routine mastication of food such as carrots or meat is about 70 to 150 newtons (16 to 34 lbf ). The maximum masticatory force in some people may reach up to 500 to 700 newtons (110 to 160 lbf ).