Bulbar palsy refers to a range of different signs and symptoms linked to impairment of function of the cranial nerves IX, X, XI, XII, which occurs due to a lower motor neuron lesion in the medulla oblongata or from lesions of the lower cranial nerves outside the brainstem.
Signs and symptoms
Symptoms
dysphagia (difficulty in swallowing)
difficulty in chewing
nasal regurgitation
slurring of speech
difficulty in handling secretions
aspiration of liquids
dysphonia (defective use of the voice, inability to produce sound due to laryngeal weakness)
dysarthria (difficulty in articulating words due to a CNS problem)
Signs
nasal speech lacking in modulation and difficulty with all consonants
tongue is atrophic and shows fasciculations. [Source: Wikipedia 
]
