GATE (Graduate Aptitude Test in Engineering) Psychology Biological and Evolutionary Basis of Behaviour-Structures of the Brain and Their Functions Study Material (Page 2 of 3)

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Brain and Nervous System: Peripheral Nervous System (PNS) and Differences between PNS and CNS

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Peripheral Nervous System (PNS)

The Peripheral Nervous System is divided into two sub-systems.

Somatic Nervous System

Its primary function is to regulate the actions of the skeletal muscles.

Autonomic Nervous System

It regulates primarily involuntary activity such as heart rate, breathing, bloo…

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Brain and Nervous System: Embryonic Vertebrate Brain

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5 Parts of Embryonic Brain

Embryonic vertebrate Brain divided into three parts: Prosencephalon (forebrain) , Mesencephalon (midbrain) and Rhombencephalon (hindbrain) .

Parts of Embryonic Brain

Prosencephalon: It is the rostral part or interior part of the brain. It is divided into two parts; Telencephalon and Diencephalon.

  • Telencephalon: consists of two cerebral hemispheres, known as cerebrum. Cerebrum is the largest part of the brain (in humans and mammals) . The…

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