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प्रश्न
___________ nervous system prepares us for the fight or flight responses.
विकल्प
Somatic
Parasympathetic
Sympathetic
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उत्तर
Sympathetic nervous system prepares us for the fight or flight responses.
APPEARS IN
संबंधित प्रश्न
Draw a labelled diagram of the following:
Brain
Differentiate between Dendrites and axons.
Renal cortex and Renal medulla [Parts of the nephrons present]
Draw neat and labelled diagrams of a myelinated neuron
Identify the odd one in each set : Cyton, Photon, Axon, Dendron
Differentiate between Spinal nerves and Cranial nerves (number of nerves).
The diagram given below is a representation of a certain phenomenon pertaining to the nervous system. Study the diagram and answer the following questions:
(i) Name the phenomenon which is being depicted.
(ii) Give the technical term for the point of contact between the two nerve cells.
(iii) Name the parts 1, 2, 3, and 4.
(iv) Write the functions of parts 5 and 6
(v) How does the arrangement of neurons in the spinal cord differ from that of the brain?
Choose the ODD one out from the following terms given and name the CATEGORY to which the others belong:
Dendrites, Medullary sheath, Axon, Spinal cord
Mention the exact location of Hydathodes
With the help of a suitable diagram describe the structures of a neuron.
Define the term Motor neuron.
Define the term Neuron.
Differentiate between following pair with reference to the aspect in bracket.
Sensory nerve and motor nerve (direction of impulse carried)
Rearrange the following in correct sequence pertaining to what is given within brackets at the end.
axon endings → nucleus → Dendrites → axon → perikaryon → Dendron(Neutron structure)
Write whether the following is true or false:
Neurotransmitters are released on activation.
Differentiate between:
Rods and Cones.
Identify the odd item from the following series of words.
Compare and contrast.
Sympathetic Nervous System and Parasympathetic 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.
The action potential occurs in response to a threshold stimulus; but not at sub-threshold stimuli. What is the name of the principle involved?
At the end of repolarization, the nerve membrane gets hyperpolarized. Why?
The neurons which carry impulse from the central nervous system to the muscle fibre.
______ is the longest cell in our body.
______ carries the impulse towards the cell body.
A neuron contains all cell organelles except ______.
Classify neurons based on their structure.
Which cells form a single layer of squamous or columnar often ciliated epithelial cells lining the ventricle?
Which cells are responsible for formation of myelin sheath?
______ is the gap between the axon of one terminal neuron and the dendrites of next neuron.
In a synapse, the chemical signal is transmitted from ______.
Explain the function of the neuron.
Rearrange the following in the correct order of involvement in electrical impulse movement-
Synaptic knob, dendrites, cell body, Axon terminal, Axon
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.
Write one word for the following:
The kind of nerve carrying impulses from the brain to a gland or muscle.
Any factor that can bring a change in the body of an organism is called ______.
Name the following:
Three types of neurons
Define the following term:
Synaptic cleft
