Human Brain

🧠Human Brain🧠

✍️Introduction

➖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 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 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 Human Brain

➖A human brain is primarily classified as the −

➭ Forebrain

➭ Midbrain

➭ Hindbrain

➖Forebrain is largely made up of cerebrum, thalamus, hypothalamus and pineal gland.

➖Midbrain is largely made up of a portion of the brainstem.

➖Hindbrain 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 Human Brain

➖Perceive or sense the signal coming from the (external) environment

➖Giving sense of feelings and emotion

➖Regulating and controlling the human behaviors

➖Regulating and controlling the physical action

➖Regulating the memory function

➖Process of thinking (and other cognitive process)