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Which of the following is a part of the limbic system?
Option: 1
Septal nuclei
Option: 2
Amygdala
Option: 3
Mammillary bodies
Option: 4
All of these
Answers (1)
As we have leant in the limbic system:
- Certain components of the cerebrum and diencephalon constitute the limbic system.
- These components are discussed below:
1. Hippocampus:
- It is located inside the temporal lobe.
- It is an essential structure for learning and memory.
2. Amygdala or Amygdaloid nucleus:
- Almond shaped structure located in the tip of the temporal lobe.
- The amygdala is involved in the experience of emotion and in tying emotional meaning to the memories.
3. Septal nuclei:
- These are located within the septal area formed by the regions under corpus callosum
4. Mammillary bodies:
- These are present behind the infundibulum.
5. Basal ganglia:
- Basal ganglia are the scattered masses of grey matter
- These are submerged in the subcortical substance of cerebral hemispheres.
- It consists of corpus striatum and lenticular nucleus.
- Parkinson’s disease occurs due to damage of the basal ganglia.
- Wilson’s disease is due to damage of the lenticular nucleus.
- It is responsible for the following:
-control of the movements during voluntary motor activity
-control of reflex muscular activity
-control of automatic associated movements
-
Therefore, the limbic system consists of the hippocampus, amygdala, septal nuclei, basal ganglion etc. Hence, the correct answer is option d.
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