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 make up more than one-half the volume of neural tissue in our body (ii) Neuroglia protect and support 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

Updated On: Jul 6, 2022
  • (i) and (iv)
  • (ii) and (iii)
  • (iii) only
  • (iv) only
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The Correct Option is C

Solution and Explanation

When a neuron is suitably stimulated, an electrical disturbance is generated which swiftly travels along its plasma membrane.
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Concepts Used:

Animal Tissues

Human bodies, like most animal bodies, are made up of four different types of tissue:

Epithelial Tissue:

This tissue forms the outer layer of the body and also lines many of the body's cavities where it has a protective function.

General functions of epithelial tissue:-

  1. Provides a barrier between the external environment and the organ that it is covering.
  2. Specialized to function in secretion and absorption.
  3. Protects organisms from microorganisms, injury, and fluid loss.

Connective Tissue:

This tissue assists in the support and protection of organs and limbs and depending on the location in the body it may join or separate organs or parts of the body.

Muscle Tissue:

This tissue enables various forms of movement, both voluntary and involuntary.

Nerve Tissue:

This tissue is responsible for the carrying of electrical and chemical signals and impulses from the brain and central nervous system to the periphery, and vice versa.