Chapter 11, Problem 1CYR

Which of the following statements about the general functions of the nervous system is false?

The three primary functions of the nervous system include sensory, integrative, and motor functions.

The integrative functions of the nervous system are its processing functions.

Sensory stimuli are transmitted on sensory efferent fibers to a sensory receptor.

d. Motor functions are carried out by fibers that carry signals to an effector.

Summary Introduction

To review:

The false statement about the general functions of the nervous system.

a. The three primary functions of the nervous system include sensory, integrative, and motor functions.

b. The integrative functions of the nervous system are its processing functions.

c. Sensory stimuli are transmitted on sensory efferent fibers to a sensory receptor.

d. Motor functions are carried out by fibers that carry signals to an effector.

Introduction:

The nervous system of the body is a complex assembly of nerves and specific cells which carry a signal in the form of electrical or chemical stimulus from one part of the body to the other. The nerve cell, or the neuron, is the basic unit of the nervous system. The structure of the nervous system is classified asperipheral and theCNS (central nervous systems).

Explanation of Solution

a. The statement “The three primary functionsserved by the nervous system are sensory, integrative, and motor functions” is true. The nervous systemperforms multiple tasks simultaneously. These functions can be classified as sensory, motor, or integrative functions.

b. The statement “The integrative functions of this system are basically to be its processing functions” is true because the integrative function involves the analysis and interpretation of the sensory stimulus. Then a suitable response is generated according to the stimulus.

c. The statement “Sensory stimuli are send on sensory efferent fibers to the sensory receptor” is false. The sensory system gathers information from the surroundings and sends it towards the central nervous system for interpretation. The efferentfibers carry the response away from the nervous system. Hence, the correct statement is “The sensory stimuli are transmitted on sensory afferent fibers to a sensory receptor.”

d. The statement “Motor functions are mainly carried out by fibers, which are responsible for carrying the signals to an effector” is true. The signal from the nervous system is sent as an output to different organs, called effectors. These effectors bring out the effects of motor nerves.

Conclusion

Thus, it can be concluded that the statements (a), (b), and (d) are true according to the reasons provided and statement (c) is false.