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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.
Ask question #Minimum 100 words acceptedYou are caring for a 29-year-old woman who is married with two small children, ages 1 and 3 years, at home. She is recuperating from a left
Define hydroxyl groups As glycerol has three hydroxyl groups , three molecules of fatty acids may get attached with it at the maximum. When one molecule of fatty
HAZARDS IN THE LABORATORY : Laboratories in the biology department of schools, colleges and universities and other higher level organisation such as hospitals, veterinary esta
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Magma that reached the Earths surface is known as: Lava
Use the following procedure for fire fighting. (1) Always take a position between the fire and the exit so your escape route cannot be cut off. Fire extinguishers should always
If rate of evaporation affects the size of crystals that grow from solution allowed to evaporate at room temperature.
Explain Neutral fats Neutral fats are esters of fatty acids with glycerol and found abundantly in nature. These are insoluble in water but readily soluble in ether,
j shaped plant curve
Adolescence: Mind and Body, you have already studied that certain hormones are essential for proper physical development of an individual. Around the age of 12, starts a pe
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