I: | Hind brain and midbrain make up the brain stem. |
II: | The hindbrain comprises pons, cerebellum and medulla. |
III: | The forebrain consists of cerebrum, thalamus and hypothalamus. |
1. | corpus striatum | 2. | corpus callosum |
3. | corpus luteum | 4. | corpus unigemina |
1. | Amygdala | 2. | Septum |
3. | Hippocampus | 4. | Olfactory bulbs |
Statement I: | Depolarisation of axonal membrane is due to influx of sodium ions. |
Statement II: | Repolarisation of axonal membrane is due to efflux of sodium ions. |
I: | Multipolar neurons are found in the cerebral cortex |
II: | Bipolar neurons are found in the retina of eye |
III: | Unipolar neurons are found usually in the embryonic stage. |
IV: | Unmyelinated nerve fibres are found in spinal and cranial nerves. |
V: | Myelinated nerve fibres are commonly found in autonomous and the somatic neural systems. |
Statement I: | The left and right cerebral hemispheres are connected by a tract of nerve fibres called corpus callosum. |
Statement II: | A canal called the cerebral aqueduct passess through the midbrain. |
Assertion(A): | The resting axonal membrane is more permeable to potassium ions than sodium ions |
Reason(R): | Potassium is the principal cation in the intracellular fluid. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | (A) is False and (R) is True. |