Which of these is not example of conditioned reflex:
A.Withdrawal of hand on touching a hot plate
B.Watering of mouth at the smell of food
C.Flowing of tears on cutting onion
D.Cycling
Category: Nervous System Physiology Mcqs
Transmission across the synapses is done with the help of:
A.Neurohormones
B.Neurohumors
C.Both (a) & (b)
D.None of these
Motor fibres inervating skeletal muscles are:
A.Cholinergic
B.Adrenergic
C.Both (a) & (b)
D.None of these
Which of these is not the example of autonomic reactions in our body:
A.Peristalsis
B.Sweating
C.Change in respiration
D.Search for food
Each cell in resting stage is in polarized state with a membrane potential of:
A.?50mV
B.?60 mV
C.?70 mV
D.80 mV
Which of these are voluntary responses in man and other animals:
A.Efforts for food search
B.Courtship
C.Copulation
D.All of these
The inhibitory effect of vagus nerve on the heart is due to the secretion of:
A.Acetylcholine
B.Norepinephrine
C.Glycine
D.Dopamine
Once synaptic junction has allowed transmission of a nerve impulse, it is made ready to transmit the next impulse by the action of:
A.Acetylcholine
B.Secretin
C.Acetylchoilnesterase
D.None of them
Who established the physiological importance of synapses:
A.Mclenan
B.Sherrington
C.Darwin
D.None of these
In the resting stage the axolemma is:
A.Poorly permeable to Na+
B.Quite permeable to K+ and Cl-
C.Impermeable to all these
D.Both (a) & (b)
