|
Sympathetic nervous system controls |
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|
a) |
Erections of hairs |
b) |
Whitening of hairs |
c) |
Withdrawl of hairs |
d) |
All of the above |
|
Sympathetic nervous system controls |
|||||||
|
a) |
Erections of hairs |
b) |
Whitening of hairs |
c) |
Withdrawl of hairs |
d) |
All of the above |
(a)
Sympathetic nervous system is a type of autonomic nervous system, which has its role in opposing the parasympathetic nervous system. There is an erector pilli, which causes erection of hair under the control of sympathetic nervous system