Question

Our body contains a large number of cells ‘L’ which are the longest cells in the body. L has long and short branches called ‘M’ and ‘N’ respectively. There is a gap ‘O’ between two ‘L’ cells, through which nerve impulse transfer by the release of chemical substance ‘P’.

(i) Name the cells L?

(ii) What are M and N?

(iii) What is the gap O?

(iv) Name the chemical substance P?

Answer 1

1. Neuron
2. Axon and Dendrites
3. Synaptic Junction (knob)
4. Neurotransmitter (Acetylcholine)