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Corpus Callosum is the fibre connecting the cerebral hemisphere of the brain

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13y ago

The Corpus Callosum connects the two hemispheres.

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Q: What large fiber tract connecting the cerebral hemispheres?
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What plays a major role in the breakdown of dietary fiber in the large intestine?

Bacteria


Does the corpus callosum connects the two hemisphere of the brain?

It is a large bundle of nervous tissue that connects the two hemispheres of the brain. Most if not all of the communicating between the two hemispheres happens through the corpus callosum. In the past, severing the corpus callosum was a means of helping control seizures; seizure activity starting in one hemisphere could not cross over to the other. Severing the corpus callosum, however, has some unfortunate side-effects. There is a separation of the functions of the two hemispheres that can be difficult to deal with regarding activities like speech, writing and object recognition.


Does a skeletal muscle fiber contain many nuclei?

Skeletal muscle fibers contain numerous nuclei. This is used to produce large amounts of the enzymes and structural proteins needed for muscle contraction.


What breaks down fiber?

Some mistakenly believe that it is broken down in the large intestine (colon) but the fact is, humans cannot break down cellulose fiber because we have no suitable organ of fermentation. The colon in humans is used mainly for reclaiming water, producing some vitamins and storing solid waste. If fiber were broken down in the colon, it would serve no nutritional purpose because sugars are absorbed in the small intestine, not the colon. In ruminants such as cows, deer and sheep, cellulose fiber is fermented in the rumen. The rumen is the first of the 4 sections of the ruminant stomach.


How is a small intestine attached surgically to rectum?

The small intestine is usually attached to the large intestine and that is attached to the rectum. If the large intestine is so damaged or diseased that it must be completely removed, the surgeon may attach the small intestine to the rectum using sutures that eventually dissolve. The loss of the large intestine is a serious matter and may result in an iliostomy (connecting the end of the small intestine to an abdominal hole, or stoma, to which an external bag is attached) rather than to the rectum.