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The left and right cerebral hemispheres are connected by a large bundle of myelinated fibres, the
Option: 1
Epithalamus
Option: 2
Corpus callosum
Option: 3
Subthalamus
Option: 4
Temporal lobe
Answers (1)
As we have learnt:
Forebrain: Cerebrum
- The cerebral hemispheres or cerebrum is the largest part of the brain occupying about two-thirds of the entire brain.
- It consists of left and right hemispheres connected by a large bundle of myelinated fibres, the corpus callosum and other smaller fibre bundles.
- The outer portion of the cerebrum is called the cerebral cortex that makes up the grey matter of the cerebrum.
- The surface of the cortex is highly folded.
- The upward folds are called gyri (sing. gyrus).
- They alternate with the downward grooves called or sulci (sing. sulcus).
- Below the grey matter millions of myelinated nerve fibres are present that connect the neurons of the cerebral cortex with those located elsewhere in the brain.
- The large concentration of myelinated nerve fibres gives this tissue an opaque white appearance. Hence they are collectively called White matter.
-
The left and right cerebral hemispheres are connected by a large bundle of myelinated fibres, the corpus callosum. Hence, the correct answer is option b.
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