A) hoarse voice
B) peptic ulcers
C) efficient digestion of proteins
D) irregular contraction of diaphragm
Correct Answer: B
Solution :
The vagus cranial nerve (X cranial) of human is made up of both sensory (incoming or afferent) and motor (outgoing or efferent) nerve fibres. It regulates the function of heart rate, respiration rate and digestive activities. Excessive stimulation of vagus nerve give rise to peptic ulcer in humans.
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