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Earn 100

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.
(a) and
(b) and
(c) only
(d) only

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Important Questions on Tissues
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Read the following four statements having certain mistakes in two of them.
Adipose tissue is a type of dense connective tissue located beneath the skin.
The compound epithelium has an extensive role in absorption and secretion.
Most of the cartilages in vertebrate embryos are replaced by bones in adults.
Smooth muscles are 'involuntary' as their functioning cannot be directly controlled.
Which of the above statements have mistakes?

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Simple columnar | Wall of heart epithelium | ||
Cardiac muscle | Bone joints | ||
Adipose | The inner lining of the stomach and intestine | ||
Hyaline cartilage | Below the skin, in the abdomen, buttocks, thighs, and breasts | ||
Diaphragm |

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