, Nervous System-Prelab [Read ADonnelly, Kalyn Nicole - File Home Insert Design
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, Nervous System-Prelab [Read ADonnelly, Kalyn Nicole - File Home Insert Design Layout References Mailings Review View | Indent Orientation. Size Spacing CMargins Page Setup Paragraph The Nervous Syste PRE-LAB QUESTIONS 1. What is the primary function of the nervous system? a. The nervous systems main function is to control and to operate the movement of the body. 2. Why does the cerebral cortex contain so many folds? a. It increases the surface area, and creates more space for processing information. Page 1 of 2 Type here to searchExplanation / Answer
Answer:-
1.At a more integrative level, the primary function of the nervous system is to control the body.
*It does this by extracting information from the environment using sensory receptors, sending signals that encode this information into the central nervous system, processing the information to determine an appropriate response,
*and sending output signals to muscles or glands to activate the response.
Other functions:-
The nervous system has three general functions:
a sensory function,
an interpretative function
and a motor function.
2.In large mammals, the cerebral cortex is usually folded, providing a greater surface area in the confined volume of the cranium.
*Increased surface area is thought to be important because it allows for the addition and evolution of a greater diversity of functional modules, or areas.
*A fold or ridge in the cortex is termed a gyrus (plural gyri) and a groove is termed a sulcus (plural sulci).
*These surface convolutions appear during fetal development and continue to mature after birth through the process of gyrification.
*In the human brain the majority of the cerebral cortex is not visible from the outside, but buried in the sulci.
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