Laboratory Manual For Human Anatomy & Physiology
Laboratory Manual For Human Anatomy & Physiology
4th Edition
ISBN: 9781260159363
Author: Martin, Terry R., Prentice-craver, Cynthia
Publisher: McGraw-Hill Publishing Co.
bartleby

Videos

Textbook Question
Book Icon
Chapter 29, Problem 1PL

The impulse over a motor neuron will lead to
a. an interneuron.
b. the spinal cord.
c. a receptor.
d. an effector.

Expert Solution & Answer
Check Mark
Summary Introduction

Introduction: Motor control can be defined as the systematic control of movement in organisms which contain a nervous system. The primary motor cortex (M1) is the main area of the brain that is involved in the motor function. M1 is present in the frontal lobe of the brain.

Answer to Problem 1PL

Correct answer: 

The correct answer is the option (d). Effector.

Explanation of Solution

Explanation/justification for the correct answer: 

Option (d). Effector. A motor neuron cell body is present in the motor cortex, brainstem or the spinal cord. Its axon or fiber projects to the spinal cord or its outside. A motor neuron can directly or indirectly control the effector organs, chiefly the glands and muscles. A nerve cell is (motor neuron) which transmits the impulses from the central nervous system to effectors in order to cause a physiological response to the modifications in the environment. Hence, the option (d) is correct. 

Explanation for the incorrect answer: 

Option (a) An interneuron. It is a neuron that transmits the impulses between other neurons, particularly as a part of a reflex arc. Hence, the option (a) is incorrect. 

Option (b) The spinal cord. The spinal cord can be defined as the cylindrical bundle of the nerve fibers and connected tissue. It is surrounded in the spinal region and joins approximately all the body parts to the brain. It forms the central nervous system with the brain. Hence, the option (b) is incorrect. 

Option (c) A receptor. A receptor is a protein that binds to a definite molecule known as ligand. A ligand might be a molecule such as hormones, inorganic minerals, proteins, and neurotransmitters. The ligand bound to the ligand-binding spot on the receptor protein. Hence, the option (c) is incorrect.

Conclusion

A nerve cell is (motor neuron) which transmits the impulses from the central nervous system to effectors in order to cause a physiological response to the modifications in the environment. Hence, the option (d) is correct.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
Sensory neurons transmit information towards the central nervous system. Which of the following is true concerning the movement of peripheral- information towards the central nervous system? A. Dendrites of the sensory neurons synapse with interneurons of the spinal cord. B. Axons of the sensory neurons synapse with motor neurons of the muscles involved in the spinal reflex. C. Axons of the motor neurons synapse with the interneurons of the spinal cord. D. Axons of the sensory neurons synapse with the interneurons of the spinal cord.
The following is incorrect about directions of impulses in the neurons Select one: a. Sensory or afferent neurons: transmit impulses from sense organs to the CNS. O. b. Motor or afferent neurons: carry impulses from CNS to effector organs c Association or interneuron: lies between the sensory & motor neurons Motor neurons are divided into upper and lower motor neurons All are incorrect
. Neurotransmitter substances are stored in vesicles located in specialized portions of thea. neuron cell body. c. dendrite.b. axon. d. postsynaptic membrane.
Knowledge Booster
Background pattern image
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Text book image
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Text book image
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Text book image
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Text book image
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Text book image
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
Nervous System - Get to know our nervous system a bit closer, how does it works? | Neurology; Author: FreeMedEducation;https://www.youtube.com/watch?v=6O-0CVAgaEM;License: Standard youtube license