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प्रश्न
Differentiate between the following pair of terms:
Receptor and effector.
उत्तर
Receptor: The nerve cell on receiving the stimulus sets up the waves of impulses towards the central nervous system.
Effector: Any muscle or gland on receiving the impulse from the brain (or the spinal cord), contracts or secretes.
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संबंधित प्रश्न
Draw a labelled diagram of the following:
Brain
Briefly explain the following terms: Synapse
The number of Spinal nerves in a human being are :
(A) 31 pairs
(B) 10 pairs
(C) 21 pairs
(D) 30 pairs
Describe three kinds of nerves, giving the example of each.
Fill in the blank:
Basic structural unit of the nervous system is the________.
State whether the following statement is true (T) or false (F):
There are 31 pairs of cranial nerves.
Complete the following statement by choosing the correct alternative from the choice given in below :
The dorsal root ganglion of the spinal cord contains cell bodies of ________ neurons.
Rearrange the following in correct sequence pertaining to what is given within brackets at the end.
Effector - Sensory neuron - Receptor - Motor neuron - Stimulus - Central nervous system Response (Reflex arc)
What are the advantages of having a nervous system?
___________ nervous system prepares us for the fight or flight responses.
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 ______.
Bipolar neurons are found in ______
Impulses travels rapidly in ______ neurons.
How nerve impulses are transferred from one neuron to the next neuron?
The structural and functional units of the nervous system is ______.
Which type of neuroglial cells are depicted in the given diagram?
What are the different parts of the multipolar neuron?
Why is the flow of signals in a synapse from axonal end of one neuron to dendritic end of another neuron but not the reverse?
Write one word for the following:
Long thread-like part of the nerve cell.
Define the following term:
Nerve
