The $Facial$ nerve is:

Trembling,depression,fear,and phobia are signs of:

Compare the following: (Any two)
$(a)$ Central neural system $(CNS)$ and Peripheral neural system $(PNS)$
$(b)$ Resting potential and action potential
$(c)$ Choroid and retina

Given below are two statements with respect to the neurotransmitter,dopamine.
Statement-$I$: Degeneration of dopamine-producing neurons causes Parkinson's disease.
Statement-$II$: Dopamine levels increase due to cocaine.
Choose the most appropriate answer from the options given below.

Match the following:
$A.$ Reflex action $1.$ Involuntary action
$B.$ Multipolar $2.$ Neuron
$C.$ $Na^+$ and $K^+$ ions $3.$ Parasympathetic nervous system
$D.$ Increases secretion of saliva and digestive juices $4.$ Reflex action
$E.$ Knee jerk $5.$ Active transport
The correct sequence for $A, B, C, D, E$ is:

Injury to the $Vagus$ nerve ($CN$ $X$) in humans is not likely to affect which of the following?