matter and al ared e m gray matter is composed of cell bodies and e brain otunmy

Question

matter and al ared e m gray matter is composed of cell bodies and e brain otunmyelinated nerve fibers, and the white matter s composed of myelinated fibers. Myelinated nerves generally carry impulses more quickly than unmyelinated nerves mooth e con The quilib- IS VIS- Questions ation. t an heart d the ssels, talso neez- 1. Why do you think it is good to have a brain with many gyri and sulci? 2. What could happen if someone suffered an accident in which part of the cerebellum were injured? I see (Fi ll be sists and 3. Compare the pig brain to drawings of a human brain, a fish brain, and a bird brain. Can you see how the pig's anatomy paral- lels human anatomy? What can you con- clude about our relation to animals like pigs? Like birds? Like fish? cov- that the on- 4. Consider this situation: A blood clot has broken free and is passing through a carotid artery. Why could this be danger- ous? om s of 5. Consider this situation: A blood clot has broken free and is passing through the jugular vein. Where could this clot end up will ray and be dangerous? 45

Explanation / Answer

1. Gyri are the folds and sulci are the depressions present on the surface of cerebral cortex. Larger the gyri and sulci larger will be the surface area of cerebral cortex and more number of neurons will be present within brain. Deeper the sulci,more is regarded the intelligence of the person because gyri and sulci increase area of cerebral cortex.

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