Which of the following statements is false with regard to human brain?
Which of the following statements is false with regard to human brain?
The correct option is D The brain has external white matter and internal gray matter
The major part of the brain in vertebrates consists of two hemispheres, left and right, separated by a fissure. The hemispheres are connected by a tract of nerve fibres called corpus callosum. Corpus callosum is responsible for the relay of impulses from both the hemispheres. The layer of cells which covers each of the cerebral hemispheres is called cerebral cortex. The cerebral cortex (outer part of the cerebral hemisphere) is referred to as the grey matter due to its greyish appearance. It contains the cytons of nerve fibres. Axons of nerve fibres are covered with the myelin sheath and constitute the inner part of the cerebral hemisphere. They give an opaque white appearance to the layer and, hence, is called the white matter.
The brain has external white matter and internal gray matter
The major part of the brain in vertebrates consists of two hemispheres, left and right, separated by a fissure. The hemispheres are connected by a tract of nerve fibres called corpus callosum. Corpus callosum is responsible for the relay of impulses from both the hemispheres. The layer of cells which covers each of the cerebral hemispheres is called cerebral cortex. The cerebral cortex (outer part of the cerebral hemisphere) is referred to as the grey matter due to its greyish appearance. It contains the cytons of nerve fibres. Axons of nerve fibres are covered with the myelin sheath and constitute the inner part of the cerebral hemisphere. They give an opaque white appearance to the layer and, hence, is called the white matter.
