EASY
10th Tamil Nadu Board
IMPORTANT
Earn 100

With a neat labelled diagram explain the structure of a neuron.

Important Questions on Nervous System

EASY
10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 15 - Nervous System>TEXTBOOK EVALUATION>Q 1
Bipolar neurons are found in
EASY
10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 15 - Nervous System>TEXTBOOK EVALUATION>Q 3
In reflex action, the reflex arc is formed by
EASY
10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 15 - Nervous System>TEXTBOOK EVALUATION>Q 4
Dendrites transmit impulse _____ cell body and axon transmit impulse _____ cell body.
EASY
10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 15 - Nervous System>TEXTBOOK EVALUATION>Q 5
The outermost of the three cranial meninges is
EASY
10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 15 - Nervous System>TEXTBOOK EVALUATION>Q 9
Node of Ranvier is found in
HARD
10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 15 - Nervous System>TEXTBOOK EVALUATION>Q 2
Illustrate the structure and functions of brain.
HARD
10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 15 - Nervous System>TEXTBOOK EVALUATION>Q 5
How nerve impulses are transferred from one neuron to next neuron?
EASY
10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 15 - Nervous System>TEXTBOOK EVALUATION>Q 2

Our body contains a large number of cells 'L' which are the longest cells in the body. L has a long and short branch 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.