The Human Brain

The brain is made up of very soft and delicate tissues. It is protected from injury by the cranium and layers of membranes called meninges. The brain consists of two layers. The outer layer is called the grey matter and the inner layer is called the white matter. The grey matter is made up of cell bodies of neurons while the white matter consists of nerve fibers..

 

The brain together with the spinal cord forms the central nervous system. It is connected to other parts of the body by the spinal cord and the peripheral nervous system. The brain acts as controlling and coordinating centre for our responses. It receives impulses from sensory organs, analyses the information received and sends them to effectors organs to bring about a response. The brain can also store information. As a result, our behavior can be modified according to past experiences.

Structure and Functions of the Human Brain

 The brain is made up of very soft and delicate tissues. It is protected from injury by the cranium and layers of membranes called meninges. The brain consists of two layers. The outer layer is called the grey matter and the inner layer is called the white matter. The grey matter is made up of cell bodies of neurons while the white matter consists of nerve fibers. The three parts of the human brain are the: a) cerebrum b) cerebellum c) medulla oblongata.

Cerebrum

 The cerebrum is also known as the fore-brain. It makes up about 80% of the total weight of the brain. The cerebrum is made up of the right and left hemispheres. The right hemisphere receives impulse from the left side of the body while the left hemisphere receives impulses from the right side of the body. The surface of the cerebrum is folded into grooves to increase its surface area to hold more neurons thus storing more information. It is richly supplied with blood vessels to provide oxygen and food to the neurons. Each hemisphere controls the actions and sensations of the opposite side of the body.

The functions of the cerebrum include: a) controlling voluntary b) receiving and interpreting impulses from sensory organs c) controlling behavior and emotions. The cerebrum is responsible for our self-awareness and also determines our personality.

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34 Responses to “The Human Brain”
  1. California Dreamer Says...

    On June 22, 2009 at 4:24 am

    Wow, very informative and good article. I wondered why my brain never stops sometimes.. lol good job again :)


  2. deep blue Says...

    On June 22, 2009 at 5:03 am

    Really nice job, that piece of meat that brought us so much fuzz, this internet hype, blogging, triond and our hardship in earning a dime per gigabyte of publications. But let us look at it on the brighter side when it bears fruit…


  3. ladybaby Says...

    On June 22, 2009 at 6:14 am

    Interesting. Such an ugly part of the body, with so much power.


  4. DA Cournean Says...

    On June 22, 2009 at 6:49 am

    Very good article!


  5. Christine Ramsay Says...

    On June 22, 2009 at 6:55 am

    A very informative and beautifully illustrated article. I always learn a lot from your articles.

    Christine


  6. Jaison Says...

    On June 22, 2009 at 7:18 am

    Very well written.


  7. Jenny Heart Says...

    On June 22, 2009 at 10:20 am

    Great informativre article.


  8. CHAN LEE PENG Says...

    On June 22, 2009 at 10:51 am

    Great article, liked it!


  9. Radhika Bhargava Says...

    On June 22, 2009 at 10:57 am

    Very Informative and a well researched article


  10. Goodselfme Says...

    On June 22, 2009 at 12:30 pm

    I continue to learn from you well done posts. TX


  11. Sherry Wallace Says...

    On June 22, 2009 at 12:39 pm

    Our brain is amazing!

    Excellent information about our brain.


  12. papaleng Says...

    On June 22, 2009 at 1:23 pm

    Excellent article, friend!


  13. Carol Skewes Says...

    On June 22, 2009 at 1:25 pm

    Excellent article! Now if I could only find the \”off\” switch!LOL!


  14. michelle dellion Says...

    On June 22, 2009 at 1:34 pm

    great article well written!!


  15. A Jom Says...

    On June 22, 2009 at 2:12 pm

    Brainy Stuff!
    Loved it.


  16. Elizabeth Abbott Says...

    On June 22, 2009 at 2:43 pm

    Wonderful, wonderful article. Absolute research article! Thank you! Liz


  17. George W Whitehead Says...

    On June 22, 2009 at 3:25 pm

    Where can I get one of these amazing things from, Mr Ghaz?


  18. nobert soloria bermosa Says...

    On June 22, 2009 at 4:38 pm

    nice informative post,nice learning from you sir!


  19. Unofre Pili Says...

    On June 22, 2009 at 7:48 pm

    Great work as usual.


  20. ZsenaKay Says...

    On June 22, 2009 at 8:29 pm

    Hey there, this is the first of your written work I’ve had the pleasure of reading… it was nicely presented and easy to follow. Thank U


  21. Ruby Hawk Says...

    On June 22, 2009 at 9:33 pm

    Our brains are so amazing. An excellent rad.


  22. Juancav Says...

    On June 22, 2009 at 10:00 pm

    Completed explanation,well done.


  23. Inna Tysoe Says...

    On June 22, 2009 at 10:06 pm

    Thanks for a well-written piece that uses pictures to great advantage.

    Inna


  24. Francy Says...

    On June 22, 2009 at 11:30 pm

    very informative
    Thanks for sharing


  25. Kate Smedley Says...

    On June 23, 2009 at 5:55 am

    Fascinating article, I learned a lot, the human brain is so complex. Well researched and well written as always.


  26. Amanda N Miller Says...

    On June 23, 2009 at 1:58 pm

    I like this.


  27. nicholas777 Says...

    On June 23, 2009 at 2:00 pm

    I feel smarter already!


  28. Joe Dorish Says...

    On June 24, 2009 at 9:43 am

    Great article Mr Ghaz!


  29. Joshua Miguel Says...

    On June 24, 2009 at 10:27 pm

    this is an amazing post. very very informative


  30. BC Doan Says...

    On June 25, 2009 at 7:21 am

    Interesting subject, and very informative..


  31. Idazalee Says...

    On June 26, 2009 at 11:40 pm

    “Human Brain”..:: Very interesting topics..nice read as always..Thank You so much for this wonderful lesson.


  32. xoxo Says...

    On June 28, 2009 at 8:48 pm

    Interesting facts. Very well written too.


  33. Momma Tells Says...

    On June 28, 2009 at 8:55 pm

    I enjoy reading about such a complex creation as the brain…nice job.


  34. CutestPrincess Says...

    On July 9, 2009 at 3:35 am

    i learned a lot from you today… excellent job!


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