Question

Nervous tissue is made up of neurons and neuroglial cells.
Which of the following statements about these two cells is/are false?
(i) Neuroglia makes up more than one-half of the volume of neural tissue in our body.
(ii) Neuroglia protects and supports neurons.
(iii) When a neuron is suitably stimulated, an electrical disturbance is generated which swiftly travels along its cytosol.
(iv) Arrival of the disturbance at the neuron's endings triggers stimulation or inhibition of adjacent neurons or other cells.

• A. (i) and (iv)
• B. (ii) and (iii)
• C. (iii) only
• D. (iv) only

Answer 1

The correct option is C (iii) only

Neuroglial cells make up more than one-half the volume of neural tissue in our body and, protect and support neurons.
When a neuron is suitably stimulated, an electrical disturbance is generated which swiftly travels along its plasma membrane and not along its cytosol. Arrival of the disturbance at the neuron's endings triggers stimulation or inhibition of adjacent neurons or other cells.