Given below is a table comparing the effects of sympathetic and parasympathetic nervous system for four feature (a-d). Which one feature is correctly described?

 

Features

Sympathetic Nervous system

Parasympathetic Nervous system

1.

Salivary Glands

Stimulates secretion

Inhibits Secretion

2.

Pupil of the Eye

Dilate

Constricts

3.

Heart rate

Decreases

Increases

4.

Intestinal peristalsis

Stimulates

Inhibits

 76%

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The black pigment in the eye which reduces the internal reflection is located in
1. retina
3. cornea
2. iris
4. sclerotic

Subtopic:  Basic Anatomy of Human Eye (OLD NCERT) |

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Hearing impairment affects which part of the brain?

1. Frontal lobe 2. Parietal lobe
3. Temporal lobe 4. Cerebellum
Subtopic:  Neuroanatomy |
 76%

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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.

Subtopic:  Autonomic Nervous System: 2 (OLD NCERT) | Autonomic Nervous System (OLD NCERT) |
 66%

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Injury to vagus nerve in humans is not likely to affect
1. tongue movements
2. gastrointestinal movements
3. pancreatic secretion
4. cardiac movements.

Subtopic:  Autonomic Nervous System: 1 (OLD NCERT) | Autonomic Nervous System: 2 (OLD NCERT) | Autonomic Nervous System (OLD NCERT) |
 57%

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Consider the following statements:
I. Somatic neural system relays impulses from CNS to skeletal muscles.
II. Autonomic neural system transmits impulses from CNS to involuntary organs and smooth muscles.
III. Unmyelinated nerve fibres are commonly found in spinal and cranial nerves.
Which of the above statements are true?
1. I and II only        2. I and III only
3. II and III only     4. I, II, and III

Subtopic:  Autonomic Nervous System: 1 (OLD NCERT) |
 62%
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Consider the following statements:
I. The resting axonal membrane is nearly impermeable to sodium ions.
II. Depolarization of the axonal membrane is due to influx of sodium ions.
III. The size of the action potential, if produced, does not depend on the strength of the stimulus.
Which of the above statements are true?
1. I and II only         2. I and III only
3. II and III only       4. I, II, and III

Subtopic:  Action Potential |

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Consider the following statements:

I: Acetylcholine is released at the electrical synapse.
II: Electrical synapses are faster.
III: It is more difficult to regulate an electrical synapse with respect to a chemical synapse.

Which of the above statements are true?
1. I and II only       
2. I and III only
3. II and III only     
4. I, II, and III

Subtopic:  Synapse |
 72%
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Identify the correct statement regarding the following diagram:
  
1. B and F are filled with endolymph
2. C is filled with perilymph
3. Hair cells press against E to generate nerve impulses
4. D is the sensory organ of hearing and has auditory receptors

Subtopic:  Inner Ear: Cochlea (OLD NCERT) |
 68%
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In the resting state of the neural membrane, diffusion due to concentration gradients, if allowed would drive

1. K+ into the cell
2. Na+ into the cell
3. Na+ out of the cell
4. K+ and Na+ out of the cell

Subtopic:  Origin of Resting Membrane Potential |
 64%
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