The muscle groups in the head include: the extra-ocular muscles (move the eyeball and open the upper eyelid), muscles of the middle ear (adjust the movement of the middle ear bones), muscles of facial expression (move the face), muscles of mastication (move the jaw—temporo- mandibular joint), muscles of the soft palate (elevate and depress the palate), and muscles of the tongue (move and change the contour of the tongue).
In the neck