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प्रश्न
Identify the parts of a neuron which help the nerve impulse to travel away from the cell body.
उत्तर
An axon is a long, slender projection of a neuron that normally carries electrical impulses away from the neuron's cell body in the form of a depolarization wave. The axon's role is to transmit information to different neurons, muscles, and glands.
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संबंधित प्रश्न
Draw neat and labelled diagrams of a myelinated neuron
Mention the exact location of Epididymis
Differentiate between the following pair of terms:
Receptor and effector.
With the help of a suitable diagram describe the structures of a neuron.
Fill in the blank:
The neurons carrying impulses from the brain to the muscles are called _______________________.
Differentiate between following pair with reference to the aspect in bracket.
Sensory nerve and motor nerve (direction of impulse carried)
What are the advantages of having a nervous system?
Define the following:
Axon
Differentiate between:
Rods and Cones.
____________ are the building blocks of the nervous system.
During synaptic transmission of nerve impulse, neurotransmitter (P) is released from synaptic vesicles by the action of ions (Q). Choose the correct P and Q.
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?
____________ is the interconnection between two neurons or neuron with motor organ.
A microscopic gap between a pair of adjacent neurons over which nerve impulses pass is called ____________.
In a neuron, conversion of electrical signal to a chemical signal occurs at/in
What is the correct direction of flow of electrical impulses?
Chemicals which are released at the synaptic junction are called ______.
Write one word for the following:
A bundle of axons enclosed in a tubular sheath.
Note the relationship between the first two words and suggest the suitable word/words for the fourth place.
Axons : Nerve :: Cytons : ______.
Name the following:
Three main parts of the neuron
