Neural Control and CoordinationMedium
Question
Sympathetic nervous system induces
Options
A.heart beat
B.secretion of digestve juices
C.secretion of saliva
D.All of the above
Solution
Medulla of brain has two regions affecting heart rate (a) cardiac inhibitory centre, (b) cardiac accelerator centre. Sensory nerves originating from the accelerator centre run parallel to the spinal cord and enter the sino- atrial node. Stimulation by these nerves, which are part of sympathetic nervous system cause an increase in heart beat.
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