The iris __________.
1. regulates light entrance through the pupil
2. refracts light rays
3. absorbs stray light rays
4. contains receptors for sight

Subtopic:  Basic Anatomy of Human Eye: 1 (OLD NCERT) | Basic Anatomy of Human Eye (OLD NCERT) |
 90%
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NEET 2023 - Target Batch - Aryan Raj Singh
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Which of the following statements are true regarding
association areas of brain?

A. These are the largest areas of forebrain.

B. These are involved in the regulation of sexual
behaviour, expression of emotional reactions
and motivation.

C. These are responsible for complex functions like
intersensory association, memory and
communication.

D. It is a part of cerebral cortex.

1. A & B 

2. A, B & C

3. A, C & D 

4. A & C

Subtopic:  Diencephalon |
 70%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

Which part of the ear determines the pitch of the sound?
1. Reissner’s membrane.
2. Basilar membrane.
3. Tectorial membrane.
4. Hair cells.

Subtopic:  Inner Ear: Vestibular Apparatus (OLD NCERT) |
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NEET 2023 - Target Batch - Aryan Raj Singh
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Cerebral aqueduct passes through the:
1. Mid brain
2. Diencephalon
3. Hind brain
4. Spinal cord

Subtopic:  Diencephalon |
 91%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Area of the brain, most involved in maintaining the body's homeostasis, is:
1. medulla oblongata
2. cerebellum
3. pons
4. hypothalamus

Subtopic:  Diencephalon |
 71%
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NEET 2023 - Target Batch - Aryan Raj Singh
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An action potential for a given axon is:
1. different in size each time it occurs
2. always the same size
3. larger when the information is to be carried faster
4. smaller when information goes to a gland rather than a muscle

Subtopic:  Action Potential |
 63%
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From outside to inside, the correct sequence of cells in the inner layer of human retina will be:
1. Photoreceptor cells, Bipolar cells, Ganglion cells
2. Ganglion cells, Bipolar cells, Photoreceptor cells
3. Photoreceptor cells, Ganglion cells, Bipolar cells
4. Ganglion cells, Photoreceptor cells, Bipolar cells

Subtopic:  Human Eye (OLD NCERT) | Basic Anatomy of Human Eye (OLD NCERT) |
 68%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Which of the following statements is not correct?

1. An action potential in an axon does not move backward because the segment behind is in a refractory phase.
2. Depolarization of hair cells of cochlea results in the opening of the mechanically gated Potassium- ion channels.
3. Rods are very sensitive and contribute to daylight vision.
4. In the knee-jerk reflex, stimulus is the stretching of muscle and response is its contraction.

Subtopic:  Human Eye (OLD NCERT) | Human Eye: Adaptation (OLD NCERT) |
 77%
From NCERT
NEET - 2019
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Which of the following receptors are specifically responsible for maintenance of balance of body and posture?

1. Basilar membrane and otoliths

2. Hair cells and organ of corti

3. Tectorial membrane and macula

4. Crista ampullaris and macula

Subtopic:  Inner Ear: Vestibular Apparatus (OLD NCERT) |
 72%
From NCERT
NEET - 2019
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Assertion: Ear is a stato Acoustic organ.

Reason: Ear is related to hearing & balance.

  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
Subtopic:  Outer & Middle Ear (OLD NCERT) |
 81%
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NEET 2023 - Target Batch - Aryan Raj Singh
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