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प्रश्न
Identify the parts of a neuron which help the nerve impulse to travel towards the cell body.
उत्तर
The minuscule extensions of nerve cells known as dendrites are responsible for receiving signals from other neurons or sensory receptors. Beginning in a dendrite, nerve impulses travel towards the cell body before proceeding down the axon.
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संबंधित प्रश्न
Mention the exact location of Hydathodes
Describe three kinds of nerves, giving the example of each.
Fill in the blanks:
A neuron consists of ________ , _________ and ________.
Mention the types of nerves found in humans.
State whether the following statement is true (T) or false (F).
A double chain of ganglia, one on each side of the nerve cord belongs to the spinal cord.
Answer the following questions briefly:
How are the cytons and axons placed in the brain and the spinal cord?
Define the following:
Axon
Differentiate between:
A Sensory neuron and a Motor neuron (function)
When the potential across the axon membrane is more negative than the normal resting potential, the neuron is said to be in a state of ______.
The action potential occurs in response to a threshold stimulus; but not at sub-threshold stimuli. What is the name of the principle involved?
‘A’ is a cylindrical structure that begins from the lower end of the medulla and extends downwards. It is enclosed in bony cage ‘B’ and covered by membranes ‘C’. As many as ‘D’ pairs of nerves arise from the structure ‘A’.
(i) What is A?
(ii) Name (a) bony cage ‘B’ and (b) membranes ‘C’
(iii) How much is D?
What are the different parts of the multipolar neuron?
What are the gaps between adjacent myelin sheaths called?
The longest fibre on the cell body of a neuron is called ____________.
Which nerves transmit impulses from the central nervous system towards muscle cells?
Electrical impulse travels in a neuron from
The basic structural and functional unit of brain is ______.
Which of the following structures is absent in nerve cells?
Note the relationship between the first two words and suggest the suitable word/words for the fourth place.
Axons : Nerve :: Cytons : ______.
