inverse marcus gunn phenomenon is a rare condition that causes the eyelid to fall upon opening of the mouth. in this case, trigeminal innervation to the pterygoid muscles of the jaw is associated with an inhibition of the branch of the oculomotor nerve to the levator palpebrae superioris, as opposed to stimulation in marcus gunn jaw-winking.
dislocation can occur following a series of events if the jaw locks while open or unable to close. if the jaw is dislocated, it may cause an extreme headache or inability to concentrate. when the muscle's alignment is out of sync, a pain will occur due to unwanted rotation of the jaw.
micrognathism is a condition where the jaw is undersized. it is also sometimes called 'mandibular hypoplasia'. citation needed it is common in infants, citation needed but is usually self-corrected during growth, due to the jaws' increasing in size.it may be a cause of abnormal tooth alignment and in severe cases can hamper feeding. it can also, both in adults and children, make intubation .
a jaw abnormality is a disorder in the formation, shape and/or size of the jaw. in general abnormalities arise within the jaw when there is a disturbance or fault in the fusion of the mandibular processes. the mandible in particular has the most differential typical growth anomalies than any other bone in the human skeleton.
coupler, a device used on a pipe organ or harpsichord to allow a player to play multiple divisions at once, by means of 'coupling' a division to another at either sub, super, or octave pitches. coupler, a tap valve, for controlling the release of beer out of a keg. coupler, the floating link in a four-bar linkage. coupling disambiguation
osteochondritis dissecans ocd or od is a joint disorder in which cracks form in the articular cartilage and the underlying subchondral bone. ocd usually causes pain and swelling of the affected joint which catches and locks during movement. physical examination typically reveals an effusion, tenderness, and a crackling sound with joint movement.