“The Knowledge Library”

Knowledge for All, without Barriers…

An Initiative by: Kausik Chakraborty.

“The Knowledge Library”

Knowledge for All, without Barriers……….
An Initiative by: Kausik Chakraborty.

The Knowledge Library

HUMAN BRAIN

➖The brain of a human being is the central organ of the nervous system.
➖The human brain consists of three parts namely the cerebrum, the brainstem, and the cerebellum.
➖The brain of a human being plays a significant role, as it controls most of the activities of the human body.
➖The brain is located inside the head and protected by the skull bones.
➖The brain consists of more than 86 billion neurons and an almost equal number of other cells as well.
➖Brain activity is made possible because of the interconnections of all the neurons that are linked together.
➖The study of brain functions is known as neuroscience.
➖An adult human brain weighs about 1.2 to 1.4 kg (i.e. average weight); which is about 2% of the total body weight.

Parts of the Human Brain

➖A human brain is primarily classified as the −
➭ Forebrain
➭ Midbrain
➭ Hindbrain
➖Forebrain is largely made up of the cerebrum, thalamus, hypothalamus, and pineal gland.
➖Midbrain is largely made up of a portion of the brainstem.
➖Hindbrain is largely made up of the remaining brainstem, cerebellum, and pons.
➖Further, the (brain) hemisphere is conventionally classified into four lobes namely −
➭ Frontal lobe
➭ Parietal lobe
➭ Temporal lobe
➭ Occipital lobe
➖The naming is done according to the skull bones that overlie them.

Cerebrum

➖Divided into nearly symmetrical left and right hemispheres by a deep groove, the cerebrum is the largest part of the human brain.
➖Cerebrum normally controls higher brain functions including language, logic, reasoning, and creativity.

Functions of the Human Brain

➖Perceive or sense the signal coming from the (external) environment
➖Giving the sense of feeling and emotion
➖Regulating and controlling the human behaviors
➖Regulating and controlling the physical action
➖Regulating the memory function
➖Process of thinking (and another cognitive process)

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KAUSIK CHAKRABORTY

KAUSIK CHAKRABORTY

Founder Director

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