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

Explain agglutination - antigen-antibody interaction, Explain Agglutination...

Explain Agglutination - Detection of Antigen-Antibody Interaction Agglutination - If Ag is present on the surface of cells, or can be made to coat these surfaces of cells, thes

Phylum coelenterata, what is the economic importance of phylum coelenterata...

what is the economic importance of phylum coelenterata

Explain acclimatization - histotoxic hypoxia, Explain Acclimatization - His...

Explain Acclimatization - Histotoxic Hypoxia A compensatory respiratory adjustment at moderately high altitudes is called acclimatization.  If you were to visit places like Leh

Police, I have 4 essay question with the answer I just need you to rewrite ...

I have 4 essay question with the answer I just need you to rewrite and paraphrase the answer I need it 12 or 2:00am is that possible ?

Kangaroo, i wants to know about kangaroo because my teacher give me an assi...

i wants to know about kangaroo because my teacher give me an assignment so for that i wants to know everything about kangaroo

Explain the routes of administration of drugs, Question 1. Explain the ...

Question 1. Explain the routes of administration of drugs 2. List 4 antimuscarinic drugs and mention their uses 3. Explain the role of bronchodilators in the treatment of

Determine the hormone secreted from the parathyroid gland, Determine the Ho...

Determine the Hormone Secreted From the Parathyroid Gland The parathyroid gland secretes parathormone. The amount secreted is strongly influenced by the level of calcium in the

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