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Q. No.The axoplasm inside the axon contains:
1.
low concentration of K+
2.
high concentration of negatively charged proteins
3.
high concentration of Na+
4.
equal concentrations of Na+ and K+
Subtopic: Origin of Resting Membrane Potential | Action Potential |
86%
From NCERT
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How many of the given statements are correct?
1. 2
2. 3
3. 4
4. 5
| I: | The left and right cerebral hemispheres are connected by a tract of nerve fibres called corpus spongiosum. |
| II: | Association areas are neither clearly sensory nor motor in function. |
| III: | Thalamus is a major coordinating centre for sensory and motor signaling. |
| IV: | The hindbrain comprises pons, cerebellum and medulla. |
| V: | Three major regions make up the brain stem: mid brain, pons and medulla oblongata. |
2. 3
3. 4
4. 5
Subtopic: Hind & Mid Brain | Diencephalon | Cerebrum, EEG & Sleep |
71%
From NCERT
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The somatic neural system relays impulses from:
| 1. | the CNS to skeletal muscles |
| 2. | the CNS to the involuntary organs and smooth muscles of the body |
| 3. | the skeletal muscles of the CNS |
| 4. | the involuntary organs and smooth muscles of the body to the CNS |
Subtopic: Nervous System |
76%
From NCERT
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Consider the two statements regarding the human internal ear:
| Statement I: | The malleus is attached to the tympanic membrane and the stapes is attached to the oval window of the cochlea. |
| Statement II: | At the base of the cochlea, the scala vestibuli ends at the round window, while the scala tympani terminates at the oval window which opens to the middle ear. |
| 1. | Statement I is incorrect; Statement II is correct |
| 2. | Statement I is correct; Statement II is correct |
| 3. | Statement I is correct; Statement II is incorrect |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Outer & Middle Ear (OLD NCERT) | Inner Ear: Cochlea (OLD NCERT) |
56%
From NCERT
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Identify A, B and C in the given figure showing sectional view of cochlea:
| A | B | C | |
| 1. | Reissener’s membrane | Tectorial membrane | Basilar membrane |
| 2. | Basilar membrane | Reissener’s membrane | Tectorial membrane |
| 3. | Tectorial membrane | Basilar membrane | Reissener’s membrane |
| 4. | Reissener’s membrane | Basilar membrane | Tectorial membrane |
Subtopic: Inner Ear: Cochlea (OLD NCERT) |
81%
From NCERT
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What type of neuron is found in the human retina and olfactory membrane?
1. Unipolar
2. Bipolar
3. Multipolar
4. Pseudo-unipolar
1. Unipolar
2. Bipolar
3. Multipolar
4. Pseudo-unipolar
Subtopic: Nervous System |
94%
From NCERT
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Unmyelinated nerve fibre:
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
| I: | is enclosed by a Schwann cell that does not form a myelin sheath around the axon |
| II: | is commonly found in autonomous and the somatic neural systems |
2. Only II
3. Both I and II
4. Neither I nor II
Subtopic: Nervous System |
86%
From NCERT
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The eye ball contains a transparent crystalline lens which is held in place by:
| 1. | iris anteriorly and choroid posteriorly |
| 2. | vitreous humor |
| 3. | sclera |
| 4. | ligaments attached to the ciliary body |
Subtopic: Basic Anatomy of Human Eye: 1 (OLD NCERT) |
89%
From NCERT
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Myelin sheath around axons in peripheral nervous system and in central nervous system is produced respectively by:
1. Schwann cells; microglia
2. oligodendrocytes; Schwann cells
3. Schwann cells; oligodendrocytes
4. satellite cells; astrocytes
Subtopic: Nervous System |
71%
From NCERT
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In the human eye:
I: The sclera regulates entrance of light into the eyeball.
II: The choroid makes colour vision possible.
III: The ciliary body controls the lens shape for near and far vision.
1. Only III is incorrect
2. Only I and II are incorrect
3. Only I and III are correct
4. I, II and III are correct
Subtopic: Basic Anatomy of Human Eye (OLD NCERT) |
57%
From NCERT
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