GATE (Graduate Aptitude Test in Engineering) Psychology Biological and Evolutionary Basis of Behaviour-Structures of the Brain and Their Functions Study Material (Page 1 of 3)

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Brain and Nervous System: Central Nervous System

Brain Its Parts and Classification

Nervous system is divided into CNS (Central Nervous System) and PNS (Peripheral Nervous System) . The non-cortical areas include:

  • Amygdala
  • Septal nuclei (region)
  • Basal forebrain
  • Basal ganglia
  • Thalamus
  • Hypothalamus
  • Limbic midbrain
  • Olfactory system

Central Nervous System

The Central Nervous System consists of the brain and the spinal cord. Both are bathed in a special fluid called the Cerebrospinal Fluid (CSF) and are protected by enclosing sheaths called Meninges. The meninges consist of three layers: the outer layer called Dura Mater, the middle layer called Arachnoid Layer, and the inner layer…

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Brain and Nervous System: Important Brain Structures


Important Brain Structures

Cerebral Cortex

The cerebral cortex is a sheet of neural tissue outermost to the cerebrum of the mammalian brain. The right and left sides of the cerebral cortex are connected by a thick band of nerve fibers called the Corpus Callosum. The cerebral cortex has many bumps and grooves. A bump or bulge on the cortex is called a Gyrus an…

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