The neuron is the structural and functional unit of the nervous system. These are specialized excitable cells of the body capable of transmitting for conducting excitation along their membrane. They also receive stimuli and transfer them from one to another neuron. A typical neuron consists of a cell body and processes as a dendrite and axon that terminate into knob or button. Dendrites carry impulses towards the cyton and the action is specialized as fibers that conduct the impulse away from cyton. So take the Neurons quiz and know more about neurons.
1. Which one of the following is the longest cell of the human body?
A. Skeletal muscle fiber
B. Nerve fiber
C. Smooth muscle fiber
D. Glial cell
2. The process of transmission of nerve impulse in invertebrate is.....
A. Chemical
B. Physical
C. Physico-chemical
D. Physico electrical
3. The membrane of the nerve fiber with a positive charge on the outer side and negative on the inner side is said to be .....
A. Resting
B. Polarized
C. Excited
D. Depolarized
4. The major part of the energy produced in a neurone is used for.....
A. Conduction of impulse
B. Cellular metabolism
C. Integration of impulse
D. Maintenance of membrane potential
5. Serotonin is derived from.........
A. Tyrosine
B. Tryptophan
C. Glycine
D. Phenyl alanine
6. Nerve impulse leaves the neuron through......
A. Dendrite
B. Axon
C. Cell body
D. Nissle bodies
7. In non-chordates, the definition of nerve impulse is.......
A. Faster than chordates
B. Slower than chordates
C. Same as in chordates
D. Varies from time to time
8. Medullated nerve fibers are surrounded by.......
A. Gland cells
B. Glial cells
C. Neurotransmitter cells
D. Schwann cells
9. When the nerve is stimulated by the additive effect of many sub-threshold values it is called......
A. Action potential
B. Summation
C. Refraction
D. Recovery period
10. Myelin sheath is meant for......
A. Mechanical support
B. Insulating the neuron
C. Preventing the loss of energy during conduction
D. All of the above
11. The velocity of an action potential depends upon........
A. Diameter of nerve fiber
B. Nature of nerve fiber
C. Length of nerve fiber
D. All of the above
12. Neurotransmitter receptors are present in.........
A. Pre synaptic membrane
B. Synaptic cleft
C. Post synaptic membrane
D. Synaptic knob
13. Which part of the neuron performs protein synthesis?
A. Cyton
B. Axon
C. Axolemma
D. Synaptic region
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