Neural Control and CoordinationHard
Question
One function of parasympathetic nervous system is
Options
A.contraction of hair muscles
B.stimulation of sweat glands
C.acceleration of heart beat
D.constrciton of pupil
Solution
Sympathetic nervous system involves expenditure of energy and increases the defence system of body against adverse conditions, so operates during stress, pain fear and anger.
Parasympathetic nervous system involves conservation of energy and brings about relaxation, comfort, pleasure etc at the time of rest.
During emergency or stress while SNS dialates pupil for more light, PNS constricts the pupil to its normal condition.
Parasympathetic nervous system involves conservation of energy and brings about relaxation, comfort, pleasure etc at the time of rest.
During emergency or stress while SNS dialates pupil for more light, PNS constricts the pupil to its normal condition.
Create a free account to view solution
View Solution Free