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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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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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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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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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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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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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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Assertion: Neural signals through the parasympathetic nerves can increase the cardiac output.

Reason: Parasympathetic neurons stimulation can increase the activities of SA node and strength
             of ventricular contraction.

  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:  Autonomic Nervous System: 1 (OLD NCERT) | Autonomic Nervous System: 2 (OLD NCERT) | Autonomic Nervous System (OLD NCERT) |
 65%
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Which of the following statements is correct?

1. Cornea consists of dense matrix of collagen and is the most sensitive portion of the eye.
2. Cornea is an external, transparent and protective proteinaceous ring of the eyeball
3. Cornea consists of dense connective tissue of elastin and can repair itself
4. The Cornea is convex, transparent layer which is highly vascularised
Subtopic:  Basic Anatomy of Human Eye: 1 (OLD NCERT) | Basic Anatomy of Human Eye: 2 (OLD NCERT) | Basic Anatomy of Human Eye (OLD NCERT) |
NEET - 2019
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Vertebrate brain differentiates from:

1. endoderm

2. mesoderm

3. ectoderm

4. blastoderm

Subtopic:  Basic Anatomy of Human Eye (OLD NCERT) |
 54%
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