| 1. | Not enclosed by a Schwann cell and hence not enclosed by a myelin sheath. |
| 2. | Enclosed by a Schwann cell that does not form a myelin sheath. |
| 3. | Not enclosed by a Schwann cell but enclosed by a myelin sheath formed by oligodendrocytes. |
| 4. | Not found in the autonomous and the somatic neural system. |
The brain stem does not include :
1. Mid-brain
2. Medulla oblongata
3. Pons Varolii
4. Cerebellum
Which of the following is a major coordinating center for sensory and motor signaling for the cerebrum?
1. Hypothalamus
2. Thalamus
3. Corpora quadrigemina
4. Amygdala
Myelin sheath is produced by
(1) Schwann cells and Oligodendrocytes
(2) Astrocytes and Schwann cells
(3) Oligodendrocytes and Osteoclasts
(4) Osteoclasts and Astrocytes
Assertion : Some areas of the brain and spinal cord look white.
Reason : This is because cell bodies of neurons are situated in those areas.
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
Assertion : Spinal cord has a column of both grey and white matter.
Reason : Grey matter forms the central spinal canal.
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
A major coordinating center for sensory and motor signaling in the human brain is shown in the given sagittal section by the letter:
1. A
2. B
3. C
4. D
Highly vascular and closely investing protective coat around the brain is known as
1. Arachnoid
2. Pia mater
3. Dura mater
4. Sub-arachnoid space
All of the following are parts of the forebrain, except
1. Cerebellum
2. Corpus callosum
3. Association areas
4. Hypothalamus
The limbic system is formed by
1. The hypothalamus, epithalamus, amygdala and hippocampus
2. Hypothalamus, amygdala and hippocampus
3. Corpora quadrigemina and hippocampus
4. Midbrain an hindbrain
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