Cholinergic fibres are those which liberate at their free ends:
A.Acetylcholine
B.Adrenaline
C.Noradrenaline
D.None of these
Category: Nervous System Physiology Mcqs
A very common example of reflex action is:
A.Salivation of mouth at the sight of a favourite food
B.Closing of eyes when an object approaches them
C.Climbing upstairs in dark without stumbling
D.Tying the shoe laces while talking to some one and not looking at shoes
Which of these have excitability:
A.Neurons
B.Muscle fibres
C.Both (a) & (b)
D.None of these
The main chemical secreted by sympathetic nervous system to prepare the organism for an emergency reaction is:
A.Gonadotropin
B.Oxytocin
C.Acetylchaline
D.Epinephrine
Conduction of nerve impulse depends upon:
A.Permeability of axolemma
B.Osmotic equilibrium
C.Electrical equivalence between axoplasm and ECF
D.All of these
Functionally neurons may be:
A.Afferent that carry impulses from periphery of the body to CNS
B.Efferent that carry impulses from CNS to the effector organs
C.Both (a) & (b)
D.None of these
How can we disturb the conduction of impulse through a nerve fibre:
A.By disturbing the permeability of axolemma
B.By altering the osmotic equilibrium
C.By disturbing the electrical equivalence
D.By all of these processes
A nerve fibre can transmit impulses at the rate of:
A.5 metre per second
B.10 metre per second
C.100 metre per second
D.130 metre per second
Nervous system in organisms, in general, serve to:
A.Regulate and control the activities of different organs in the body
B.Link and coordinate the activities of various organs to ensure the integrity of the animal
C.Help the organs to maintain unity with the environment
D.All of these functions
