Limbic System MCQ - Practice Questions with Answers

Limbic System

• The limbic system is the collective name for the parts of the brain that controls emotions, motivation, and emotional association with memory.
• 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.
• It converts short term into long term 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