Forebrain , Science

Assignment Help:

Forebrain:

The largest part of  the brain that you  see in Fig. is the cerebrum. It consists of  two halves or hemispheres  joined  together by  a band of  nerve fibres. Interestingly the crossing over of nerve fibres here causes the right half  to control the actions.of  the left side of the body and vice versa. The outer surface of  the cerebrum is  the cerebral cortex.  It is often referred to as the  'grey matter' because of  its colour. It is profusely supplied with blood vessels. The cortex was explored in a very fascinating way, particularly by a Canadian neuro- surgeon, Wilder Penfield: Since 1900's it was known that the brain cpntained no pain :ceptors and.hence  it could be operated upon, without making the person unconscious: local anesthesia, the top of  the skull could be removed  like a cap to expose the cortex. Penfield did exactly this and he stimulated different parts of the cortex, one by one, by matching  them with an electric wire or probe. He was amazed to observe the reactions of the dtients. On touching one part of  the cortex with the probe, the patients could see, hear or nell or feel! Patients could revive old memories. Some reported hearing the sound of a articular song; one woman felt as if  her daughter was in  the room talking to her; another. erson could actually recollect the smell of  flowers! Stimulation of  other regions caused notor responses such as the movement of  an arm or leg.  

1649_Forebrain.png


Related Discussions:- Forebrain

Walking robots, Walking Robots: Sit back  for a while and  try  to th...

Walking Robots: Sit back  for a while and  try  to think of a few advantages our legs have over wheels  in moying around. Wheels can't  climb stairs. They can't also step ove

Biot law, biot law mathmatical description

biot law mathmatical description

Electricity, positive energy power full or negetiveenergy

positive energy power full or negetiveenergy

Friction, Where friction is desirable and undesirable at the same time.

Where friction is desirable and undesirable at the same time.

Help, A rock weighs 33.6 N on Planet X and 49 N on Earth. What is g on Plan...

A rock weighs 33.6 N on Planet X and 49 N on Earth. What is g on Planet X?

Procedure identification of compressed gases , PROCEDURE Locate the gas...

PROCEDURE Locate the gas cylinders available in the lab. Note the colour of the cylinder (to a maximum of two and exclude the LPG) and bands on it (if any) and record them i

Explain collecting duct or tubules - structures of a nephron, Explain Colle...

Explain Collecting Duct or Tubules - Structures of a Nephron Collecting Duct/Tubules: A long straight portion after the distal tubule is the open end of the nephron. It extends

Define ligases, Ligases (synthetases) These enzymes (code EC 6) catal...

Ligases (synthetases) These enzymes (code EC 6) catalyze the linkage of two molecules coupled with the hydrolytic breakdown of a pyrophosphate bond  in ATP or an analogous co

Forebrain , Forebrain: The largest part of  the brain that you  see in ...

Forebrain: The largest part of  the brain that you  see in Fig. is the cerebrum. It consists of  two halves or hemispheres  joined  together by  a band of  nerve fibres. Intere

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd