Cerebrum cortex of our brain

The outer layer of the cerebrum (means both left hemisphere and right hemisphere) of our brain is called cerebrum cortex. The colour of the cerebrum cortex is gray. It consist of neurons, blood vessels and glial cells.

We can divided the cerebrum  cortex into two parts 1) outer layer 2) inner layer. The outer layer of the cerebrum cortex is gray in colour and consist of gray matter. Inner layer of the cerebrum cortex is white and consist of white matter.

In the white matter of the cerebrum cortex is consist of a special types of nerve fiber called myelinated commissural nerve fibres.

What is nerve fibre?

"Nerve fibres or axons, are long, thin strands of tissue that project from a nerve cell and carry electrical impulses to and from the brain"*.

We can divided these myelinated commissural nerve fibres into two types

1. Corupus callosum which is connected our two hemispheres of the cerebrum.
2. Association fibres which is connected different region of each hemisphere of the cerebrum.

Reference Books

1. Dr. Chintamani Kara "Higher Secondary Psychology Part-1" New Age Publication, Cuttack, 2007 (Oriya)
2. Ann Mcintosh Hoffelder and Robert L. Hoffelder "How the Brain Grows" series of brain works, series editors" Eric H. Chudler New York: Chelsea House Publishers
3. Allan and Barbara Pease, "Why men don't listen and women can't read maps" Manjul Publishing House Pvt. Ltd., Bhopal, India 2006
4. Kara Rogers "The brain and the nervous system" Britannica Educational Publishing, New York, USA.(* page 20)

 

Our Brain

Brain is the very important part of the central nervous system. In the simple way, we can say our brain is a super computer which consist of a processor, motherboard, hard disk etc. as a hardware and own software to operates the whole body.

In a computer, several peripheral are connected to the system unit. They are sending and receiving the signal from the system unit.

Similarly in our brain also receives signal from sensory neurons in the central and peripheral nerves system and by own software program it generates and sends new signal to instruct a particular function of our body part to react in a particular way.

The human brain are three time bigger then the size of the gorilla.And also one third time bigger than Neanderthal man.

The objects which is starting from the top of the spinal code is called brain. Our brain is cover by a strong and bony protective part is called cranium or cranial cavity. Cranium or cranial cavity is "surrounds the brain like a permanent, exclusively designed bike helmet"*  to protect our brain for accident.

We can divided our brain  into 3 different parts such as

1. Cerebellum
2. The brain stem
3. Cerebrum

Reference Books

1. Dr. Chintamani Kara "Higher Secondary Psychology Part-1" New Age Publication, Cuttack, 2007 (Oriya)
2. Ann Mcintosh Hoffelder and Robert L. Hoffelder "How the Brain Grows" series of brain works, series editors" Eric H. Chudler New York: Chelsea House Publishers (* page no. 11)
3. Kara Rogers "The brain and the nervous system" Britannica Educational Publishing, New York, USA.
4. Allan and Barbara Pease, "Why men don't listen and women can't read maps" Manjul Publishing House Pvt. Ltd., Bhopal, India 2006