The action potential on inner side of axolemma is:
A.45 mV
B.55 mV
C.65 mV
D.75 mV
Category: Nervous System Physiology Mcqs
Sympathetic postganglionic fibres except those innervating sweat glands and uterus are:
A.Adrenergic
B.Cholinergic
C.Both (a) & (b)
D.None of these
In saltatory transmission the impulse propagates:
A.Throughout the fibre in linear fashion
B.From one node of Ranvier to other and so on so forth
C.Without passing through synapses
D.In none of these ways
Nervous inervation of heart is primarily meant for:
A.Starting the heart beat
B.Regulating the heart beat
C.Releasing acetylcholine
D.Releasing adrenaline
Which of these processes are only found in the animals:
A.Nervous control
B.Hormonal control
C.Respiration
D.Diffusion
Impulses from CNS to effectors are always carried by:
A.Dendrites
B.Axons
C.Cytons
D.All of these
Neutralization of negative charges over complex organic molecules by K+ ions is a necessary process:
A.To protect the coagulation of cytoplasm which could occur due to electric potential established within the cytoplasm
B.To protect dehydration of neurons
C.To protect hydration of axoplasm of neuron
D.To neutralize the surface charge over axon
In vertebrates the reflex action is:
A.Monosynaptic
B.Polysynaptic
C.Bisynaptic
D.All of these
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
Transmission across the synapses is done with the help of:
A.Neurohormones
B.Neurohumors
C.Both (a) & (b)
D.None of these
