
Nissl bodies found in neurons are _____.

Important Questions on Nervous system and Sense Organs

"Myelin sheath accelerates the speed of impulses through axon and provides nutrition to it."
How does myelin sheath form?


Label the parts corresponding to the alphabets in the given diagram given?

How does nerve impulse travel in our body?


Observe the picture and answer the following question
How does myelin sheath form ?


Redraw the diagram. Name and label the parts indicated, below,
Branches of dendrons

Redraw the diagram. Name and label the parts indicated, below,
Secretes neurotransmitter



The diagram is given below the internal structure of a spinal cord depicting a phenomenon. Study the diagram and answer the questions.
Give the technical term for the point of contact between the two nerve cells.

a) Peripheral nervous system involved in the formation of the myelin sheath.
b) Central nervous system in which oligodendrocytes form myelin sheath and astrocytes bind neurons with capillaries.
c) Autonomic nervous system in which both cells provide support.
d) Sympathetic nervous system in which the two cells help in conduction.





Write any two differences between axon and dendrites.

Write a and b in the given flow chart of neuron through which information travels as an electrical impulse.

