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  • The tongue has both motor and sensory functions. You can always ask the child about taste sensations.
  • For the motor function, ask the child to open the mouth and protrude the tongue.
  • You can also ask the child to move the tongue from side to side to see the motor component
  • If you are looking for fasciculation, ask the child to open the mouth and look into it without protruding the tongue
  • The sensations from the anterior 2/3rd of tongue us carried by Facial nerves and the posterior 1/3rd is carried by Glossopharyngeal nerve.


  1. Jack in the box –
    1. Alternate protruding the tongue and taking it back in.
    2. It occurs in Rheumatic chorea
  1. Tremors
    1. Seen in thyrotoxicosis,anxiety
  1. Fasciculation
    1. Seen in Hypoglossal nerve palsy
  1. Macroglossia
    1. Seen in Downs syndrome
    2. Hypothyroidism
    3. Acromegaly
    4. Mucopolysaccharides
  1. Microglossia
    1. Cerebral palsy
    2. Motor neuron disease


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