Human Anatomy & Physiology (2nd Edition)
Human Anatomy & Physiology (2nd Edition)
2nd Edition
ISBN: 9780134553511
Author: Erin C. Amerman
Publisher: PEARSON
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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.

Expert Solution & Answer
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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.

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1) Which of the following accurately describes the direction of an impulse moving through a neuron that carries information to the central nervous system (CNS) from the peripheral nervous system (PNS)?a. A sensory (afferent) neuron, impulse moving distally.b. A motor (efferent) neuron, impulse moving proximally.c. A motor (efferent neuron, impulse moving distally.d. A sensory (afferent) neuron, impulse moving proximally.   2) The central nervous system (CNS) is composed ofa. spinal nerves.b. sense receptors.c. the brain and spinal cord.d. nerves of the internal organs.
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Chapter 11 Solutions

Human Anatomy & Physiology (2nd Edition)

Ch. 11.2 - Prob. 6QCCh. 11.2 - 7. What is the function of the myelin sheath? Ch. 11.2 - How does the myelin sheath differ in the CNS and...Ch. 11.2 - Are neurons more likely to regenerate in the CNS...Ch. 11.2 - Prob. 10QCCh. 11.3 - 1. What is the resting membrane potential? Ch. 11.3 - In and around the axon, where is the higher...Ch. 11.3 - Prob. 3QCCh. 11.3 - 4. Define local potential. Why is it also called...Ch. 11.3 - Why are local potentials useful only for...Ch. 11.3 - What takes place during the depolarization phase...Ch. 11.3 - 7. What must be reached in order for...Ch. 11.3 - 8. What takes place during the repolarization and...Ch. 11.3 - 9. What are the absolute and relative refractory...Ch. 11.3 - 10. How do local potentials and action potentials...Ch. 11.3 - Which is useful for long-distance signaling, and...Ch. 11.3 - 12. How is an action potential propagated down an...Ch. 11.3 - Prob. 13QCCh. 11.4 - What are three locations where presynaptic axons...Ch. 11.4 - Define synaptic transmission.Ch. 11.4 - Prob. 3QCCh. 11.4 - How do the two types of postsynaptic potentials...Ch. 11.4 - Prob. 5QCCh. 11.4 - Prob. 6QCCh. 11.5 - Prob. 1QCCh. 11.5 - Prob. 2QCCh. 11.5 - Prob. 3QCCh. 11.5 - Prob. 4QCCh. 11.5 - Prob. 5QCCh. 11.5 - Prob. 6QCCh. 11.6 - 1. Why are neurons organized into neuronal...Ch. 11.6 - Prob. 2QCCh. 11.6 - 3. What mechanisms stabilize neural circuits? Ch. 11 - Which of the following statements about the...Ch. 11 - 2. Regulation of heart rate, blood pressure, and...Ch. 11 - Match each type of neuroglial cell with its...Ch. 11 - 4. Mark the following statements as true or false....Ch. 11 - 5. An axon is best defined as a process that: a....Ch. 11 - 6. Fill in the blanks: The myelinated segment of...Ch. 11 - 7. Fill in the blanks: The _______is the period of...Ch. 11 - 8. Which of the following statements best...Ch. 11 - 9. Identify the following as properties of...Ch. 11 - The trigger for exocytosis of synaptic vesicles...Ch. 11 - Match the following neurotransmitters with their...Ch. 11 - 12. Which of the following is not a method by...Ch. 11 - 13. A ________is characterized by multiple input...Ch. 11 - Mark the following statements as true or false. If...Ch. 11 - Sequence the following list of events of a...Ch. 11 - 16. Mark the following statements as true or...Ch. 11 - 1. A drug that blocks channels in neurons does so...Ch. 11 - Prob. 2CYUCh. 11 - Why must a cell body be intact for an axon to...Ch. 11 - 4. Explain how an action potential is propagated...Ch. 11 - Prob. 1AYKACh. 11 - 2. During a surgical procedure, an...Ch. 11 - Albert accidentally ingests the poison...Ch. 11 - 4. Albert, the patient in question 3, takes the...Ch. 11 - Predict the effect that tetrodotoxin would have on...Ch. 11 - Explain what would happen if depolarization of the...

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