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The sensory neuron enters the spinal cord through:
1. The dorsal root of the spinal nerve
2. The ventral root of the spinal nerve
3. Either dorsal or ventral root depending on the point of origin 
4. Both dorsal and ventral roots of the spinal nerves

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NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
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Destruction of the anterior horn cells of the spinal cord would result in loss of 

(1) sensory impulses

(2) voluntary motor impulses

(3) commissural impulses

(4) integrating impulses

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One common example of simplex reflex is 
(1) tying your shoe laces while talking to another person and not looking at them 

(2) watering of mouth at the sight of a favourite food 

(3) climbing up a stairs in dark without stumbling

(4) closing of eyes when strong light is flashed across them.

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Assertion   :       All motor neurons are efferent neurons.

Reason      :       Motor neurons conduct nerve impulses from the spinal cord to the brain.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
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Reflex action does not involve

(1) Conscious thought

(2) PNS

(3) Involuntary response

(4) Both B and C

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NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.