Anatomy & Physiology
1st Edition
ISBN: 9781938168130
Author: Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher: OpenStax College
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 12, Problem 39CTQ
If a person has a motor disorder and cannot move their aim voluntarily, but their muscles have tone, which motor neuron—upper or lower—is probably affected? Explain why.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Interneurons can act as “switches” that enable a movement to be turned on or off under the command of higher motor centers. How? Explain with an example?
Higher motor commands originate in all the following centers, except :-a- cerebral cortexb- thalamusc- caudate nucleusd- cerebellum
The primary motor area projects efferent fibers to all the following centers, except :-a- 1ry somatic sensory areab- premotor area c- supplemental motor aread- brainstem motor nuclei
Chapter 12 Solutions
Anatomy & Physiology
Ch. 12 - In 2003, the Nobel Prize in Physiology or Medicine...Ch. 12 - Visit this site...Ch. 12 - Visit this site...Ch. 12 - View the University of Michigan Webscope...Ch. 12 - What happens across the membrane of an...Ch. 12 - Visit this site...Ch. 12 - Watch this video...Ch. 12 - Watch this video...Ch. 12 - Which of the following cavities contains a...Ch. 12 - Which structure predominates in the white matter...
Ch. 12 - Which part of a neuron transmits an electrical...Ch. 12 - Which term describes a bundle of axons in the...Ch. 12 - Which functional division of the nervous system...Ch. 12 - What type of glial cell provides myelin for the...Ch. 12 - Which part of a neuron contains the nucleus?...Ch. 12 - Which of the following substances is least able to...Ch. 12 - What type of glial cell is the resident macrophage...Ch. 12 - What two types of macromolecules are the main...Ch. 12 - If a thermoreceptor is sensitive to temperature...Ch. 12 - Which of these locations is where the greatest...Ch. 12 - How long does all the signaling through the...Ch. 12 - What is the target of an upper motor neuron?...Ch. 12 - What ion enters a neuron causing depolarization of...Ch. 12 - Voltage-gated Na+ channels open upon leaching what...Ch. 12 - What does a ligand-gated channel require in order...Ch. 12 - What does a mechanically gated channel respond to?...Ch. 12 - Which of the following voltages would most likely...Ch. 12 - Which of the following is probably going to...Ch. 12 - How much of a change in the membrane potential is...Ch. 12 - A channel opens on a postsynaptic membrane that...Ch. 12 - What neurotransmitter is released at the...Ch. 12 - What type of receptor requires an effector protein...Ch. 12 - Which of the following neurotransmitters is...Ch. 12 - What responses are generated by the nervous system...Ch. 12 - When eating food, what anatomical and functional...Ch. 12 - Multiple sclerosis is a demyelinating disease...Ch. 12 - Which type of neuron, based on its shape, is best...Ch. 12 - Sensory fibers, or pathways, are referred to as...Ch. 12 - If a person has a motor disorder and cannot move...Ch. 12 - What does it mean for an action potential to be an...Ch. 12 - The conscious perception of pain is often delayed...Ch. 12 - If a postsynaptic cell has synapses from five...Ch. 12 - Why is the receptor the important element...
Additional Science Textbook Solutions
Find more solutions based on key concepts
When you take off in a jet aircraft, there is a sensation of being pushed back into the seat. Explain why you m...
College Physics
In mechanism, photophosphorylation is most similar to A. substrate-level phosphorylation in glycolysis. B. oxid...
Campbell Biology in Focus (2nd Edition)
Name the components (including muscles) of the thoracic cage. List the contents of the thorax.
Human Physiology: An Integrated Approach (8th Edition)
15. A good scientific hypothesis is based on existing evidence and leads to testable predictions. What hypothes...
Campbell Biology: Concepts & Connections (9th Edition)
Distinguish between microevolution, speciation, and macroevolution.
Campbell Essential Biology (7th Edition)
Fibrous connective tissue consists of ground substance and fibers that provide strength, support, and flexibili...
Human Biology: Concepts and Current Issues
Knowledge Booster
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
- An individual sustains injuries to only the ascending tract of the spinal cord.will this person experience deficits in movement,sensation,both or neither?explain.arrow_forwardWhy is Speech a sensory motor act?arrow_forwardCoordination and timing of movements and balance are functions of which of the following brain structures? a- basal ganglia b- motor cortex c- midbrain motor centers d- cerebellumarrow_forward
- What is the target of an upper motor neuron?a. cerebral cortexb. lower motor neuronc. skeletal muscled. thalamusarrow_forwardFor each of the following muscles or body regions, identify the plexus and the peripheral nerve(s) (or branch of one) involved. Use choices from keys A and B.arrow_forwarda) what letter represents dorsal white column b) what letter represents structure that carrys motor impulses from CNS to skeletal muscles? c) What letter represents structure that houses cell bodies of general somatic afferent neurons?arrow_forward
- All of the following are descending motor tracts, except :-a- Rubrospinal tractb- Spinotectal tractc- Reticulospinal tractd- Corticobulbar tractarrow_forwardFill in the blankes The somatic motor neurons innervating the __________________ of the lower limbs are located in the _________________ of the spinal cord. A. smooth muscles; lumbar region B. skeletal muscles; cervical region C. skeletal muscles; lumbar region D. skin; cervical regionarrow_forwardDescribe the function of the following types of neurons a. Sensory neurons (also known as ____________ neurons): b. Motor neurons (also known as ____________ neurons): c. Interneurons (also known as ____________ neurons):arrow_forward
- if a person were in car accident, what division of the autonomic nervous system would be activatedarrow_forwardWhen playing soccer what pathway is involved in activating your leg muscles to kick the ball: Ascending pathway Crticospinal pathway Spinothalamic pathway Dorsal column-medial lemniscal pathwayarrow_forwardExplain the differences between a sensory neuron, motor neuron, and interneuron.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage LearningHuman Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
The Sensorimotor System and Human Reflexes; Author: Professor Dave Explains;https://www.youtube.com/watch?v=M0PEXquyhA4;License: Standard youtube license