Question

The given figure shows the structure of a neuron. Select the option that correctly identifies the parts labelled as A to E.

• A. A-Nerve fibres, B-Cyton, C-Schwann cell, D-Node of Ranvier, E-Synaptic Knob
• B. A-Dendrites, B-Cyton, C-Schwann cell, D-Node of Ranvier, E-Synaptic Knob
• C. A-Dendrites, B-Nerve cell, C-Schwann cell, D-Synaptic Knob, E-Node of Ranvier
• D. A-Axons, B-Cyton, C-Nerve cell, D-Node of Ranvier, E-Synaptic Knob

Answer 1

The correct option is B A-Dendrites, B-Cyton, C-Schwann cell, D-Node of Ranvier, E-Synaptic Knob

Solution: B.

Neurons vary in shape, size and structure according to their location and function. Nearly all neurons have three parts namely: cell body, axon and dendrites. Some axons are covered with myelin sheath i.e. insulated fatty substance, which is formed by Schwann cells.