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प्रश्न
Distinguish between the following pair:
Nerve impulse and flow of electricity (transmission and speed)
उत्तर
| Nerve Impulse | Flow electricity |
| The sodium-potassium pump transmits nerve impulses across axons by polarising and depolarising Na+ ions. Nerve impulses move at a speed of 100 m/sec. | Electricity flows through wires as electrons move between two points with different potentials. Electricity is conducted through wires at a speed of 1,50,000 km/sec. |
संबंधित प्रश्न
Differentiate between Myelinated and non-myelinated axons.
Marine fish when placed in tap water bursts because of:
A. Endosmosis
B. Exosmosis
C. Diffusion
D. Plasmolysis
Mention the exact location of the Lacrimal gland
Fill in the blank:
Basic structural unit of the nervous system is the________.
______ is the longest cell in our body.
Which of the following statements about transmission of nerve impulse is incorrect?
Chemicals which are released at the synaptic junction are called ______.
Write one word for the following:
wave of electrical disturbance that sweeps over the nerve cell.
Write one word for the following:
A bundle of axons enclosed in a tubular sheath.
Give reason:
Neurotransmitters are broken down by an enzyme just after passing an impulse from one neuron to the other.
