Question

Q. Cerebral cortex contains
1) Large motor area and less association area
2) Less sensory area and less association area
3) Less motor and sensory area and large association area
4) Large sensory and less motor area​

Answer 1

Answer:

1A:- The motor cortex is the region of the cerebral cortex involved in the planning, control, and execution of voluntary movements. Classically, the motor cortex is an area of the frontal lobe located in the posterior precentral gyrus immediately anterior to the central sulcus.

2A:- Higher-order integrative cortical areas, called association areas, intervene between the sensory inputs and motor outputs. Hierarchical organization of the cortex was proposed in the 1870s by the famous British neurologist, John Hughlings Jackson. These association areas are the site of cognitive processing and are the focal areas in the rapidly developing field of cognitive neuroscience.

3A:- The association areas integrate information from different receptors or sensory areas and relate the information to past experiences. Then the brain makes a decision and sends nerve impulses to the motor areas to generate responses.

4A:- Sensory areas are the areas of the brain that receive and process sensory information. ... The cortex is commonly described as composed of three parts: sensory, motor, and association areas. Parts of the cortex that receive sensory inputs from the thalamus are called primary sensory areas.

Explanation:

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