Question

Which of the following is not the main part of the limbic system?
A. Amygdala
B. Septum
C. Hippocampus
D. Corpus striatum

Answer 1

Hint: The limbic system is present in the forebrain part. The inner part of cerebral hemispheres and a group of associated deep structures form a complex structure called the limbic lobe or limbic system.

Complete answer: The associated deep structures include the amygdala, hippocampus, and other connecting structures.
Along with the hypothalamus the limbic system involved in sexual behavior, expression of emotional reactions (i.e. excitement, pleasure, rage, and fear) and motivation, long term memory, and olfaction
Hippocampus: play a vital in the consolidation of new memories and long term memories.
Amygdala: located deep within the temporal lobes and they are related to a number of the emotional processes.
The septum or septal nuclei: a group of subcortical structures that are linked with pleasure zone

Additional information: The limbic system is the part where the subcortical structures meet the cerebral cortex.
They operate by influencing the endocrine system and the nervous system.
Hippocampus is the heavily involved limbic interacting structure.
Besides memory amygdala is an important brain region involved in attention and emotion processes. It is a part of the system that processes reflexive emotions like fear and anxiety.
The hippocampus is the first area where is affected by Alzheimer’s disease.

So the correct answer is option is D. Corpus Striatum.

Note: The corpus striatum is present in the forebrain part but is not a part of the limbic system.