Question

The area of the cerebral cortex controlling vision is:
A) Frontal lobe
B) Parietal lobe
C) Temporal lobe
D) Occipital lobe

Answer 1

Hint:
Each hemisphere of the brain is composed of a thin outer layer of gray matter called the cerebral cortex. Functionally, the cortex of each hemisphere is divided into four lobes or areas- occipital, temporal, parietal, and frontal.

Complete step by step answer:
The frontal lobes are located in front of the brain and are responsible for three main functions: 1) voluntary motor activity, 2) speaking ability, and 3) elaboration of thought. The parietal lobes are located behind the frontal lobes in front of the occipital lobes. The sensory part for example pain, touch, taste, and temperature are processed by the parietal lobes. In addition, the processing includes information about members, attentiveness to the position of one’s body parts, the space around one’s body, and one’s relationship to this space.
On each side of the brain, temporal lobes are present. They mediate memory and hearing (auditory) information with speech as well as language functions. The occipital lobe gets visual information and it is also responsible to process the received information. Occipital lobes are present at the back of the brain. The cerebral cortex encloses the thick central core of the white matter. Several masses of gray matter that collectively constitute the basal nuclei also called basal ganglia are also located deep within the white matter.

Option ‘D’ is correct

Note:
Gray matter consists mostly of densely packed neuronal cell bodies and their dendrites, as well as glial cells. It appears greyish rather than white because Nissl bodies impart gray colour and there is little or no myelin in these areas.