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The nerve is then tested by sticking the tongue out. If there is damage to the nerve or its pathways, the tongue will usually but not always deviate to one side, due to the genioglossus muscle receiving nerve signals on one side but not the other. [6] [19] When the nerve is damaged, the tongue may feel "thick," "heavy," or "clumsy."
Tongue thrusting is a type of orofacial myofunctional disorder, which is defined as habitual resting or thrusting the tongue forward and/or sideways against or between the teeth while swallowing, chewing, resting, or speaking. Abnormal swallowing patterns push the upper teeth forward and away from the upper alveolar processes and cause open bites.
a deviation of the tongue to the side of the infarct on attempted protrusion, caused by ipsilateral muscle weakness. hypoglossal nerve fibers #8 limb weakness (or hemiplegia, depending on severity), on the contralateral side of the infarct medullary pyramid and hence to the corticospinal fibers of the pyramidal tract #5
Inferior alternating hemiplegia (also known as medial medullary syndrome) typically involves a "weakness of the extremities accompanied by paralysis of muscles on the ipsilateral side of the tongue (seen as a deviation of the tongue on that side on protrusion). These symptoms indicate a lesion in the medulla involving the corticospinal fibers ...
Hearing is tested by whispering numbers in one ear as patient covers the other and ask the patient to repeat the numbers. Alternatively, have patient close their eyes and say "left" or "right" depending on the side from which they hear the sound. Vigorously rub fingers together in one ear at a time to produce rustling sound. [3]
The sides of the tongue are inspected with a gloved hand holding a piece of gauze. The tongue is moved side to side and inspected; it should be pink, moist, smooth and glistening. Assessment of the ventral (bottom) surface of the tongue is done by having the patient touch the tip of their tongue against the roof of their mouth.
The genioglossus is one of the paired extrinsic muscles of the tongue. It is a fan-shaped muscle that comprises the bulk of the body of the tongue. It arises from the mental spine of the mandible; it inserts onto the hyoid bone, and the bottom of the tongue. It is innervated by the hypoglossal nerve (cranial nerve XII). The genioglossus is the ...
sideways deviation or protrusion of the jaw; lip tightening and pursing; drawing back (retraction) of the corners of the mouth; deviation or protrusion of the tongue. jaw pain; difficulties eating and drinking; difficulties speaking ; Blepharospasm symptoms. the first symptom to appear is an increased rate of blinking [2]