Human Anatomy
9th Edition
ISBN: 9780135168059
Author: Marieb, Elaine Nicpon, Brady, Patricia, Mallatt, Jon
Publisher: Pearson Education, Inc.,
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Textbook Question
Chapter 12, Problem 23RQ
Draw a reflex arc in place in the nervous system (recall Figure 12.11). Would the
reflex still function if the neurons in the sensory ganglia were destroyed?
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Draw a reflex arc in place in the nervous system (recall Figure 12.11). Would the reflex still function if the neurons in the sensory ganglia were destroyed?
Small
intestine
(or other
visceral
organ)
CNS
(spinal cord)
Skeletal muscle
Figure 14.1
Using Figure 14.1, match the following:
11) Myelin sheath.
11)
12) Cell body of ANS preganglionic neuron.
12) -
13) Cell body of ANS postganglionic neuron.
13)
14
14) Cell body of the somatic neuron.
TIPLE CHOICE. Choose the one alternative that best completes the statement or answers the qu
15) Which of the following is not a function of astrocytes?
A) guide the migration of young neurons, synapse formation, and helping to determine ca
permeability
B) support and brace neurons
C) anchor neurons to blood vessels
Cell bodies of UMN that synapse on LMN lie in all of these areas EXCEPT
a) Medulla
b) Thalamus
c) Pre-motor cortex
Pons
d) Primary motor cortex
Chapter 12 Solutions
Human Anatomy
Ch. 12 - In which direction are afferent signals carried?...Ch. 12 - What subdivision of the nervous system regulates...Ch. 12 - What type of sensation is (a) pain from a pulled...Ch. 12 - Which type of neuron process receives stimuli?Ch. 12 - Describe how the electrical impulse from one...Ch. 12 - What is the structural type of most sensory...Ch. 12 - Which structural type of neuron is most abundant?...Ch. 12 - Which neuroglia make myelin in the CNS? In the...Ch. 12 - Which neuroglia are common in regions where...Ch. 12 - Do Schwann cells cover nonmyelinated axons in the...
Ch. 12 - Name the connective tissue wrapping that encloses...Ch. 12 - Where do synaspes occur in the CNS, in white...Ch. 12 - Why is white matter white?Ch. 12 - If there is no interneuron in a reflex arc, as in...Ch. 12 - If you touch a hot stove, you reflexively...Ch. 12 - What type of neuronal circuit contains multiple...Ch. 12 - Both peripheral nerves and the white matter of the...Ch. 12 - From your understanding of the functions of myelin...Ch. 12 - What type of neurons form from neuroblasts in the...Ch. 12 - How does the development of sensory neurons...Ch. 12 - Prob. 1RQCh. 12 - Match the names of the cells in column B with the...Ch. 12 - Prob. 3RQCh. 12 - Prob. 4RQCh. 12 - An example of an effector is (a) the eye, (b) a...Ch. 12 - Prob. 6RQCh. 12 - A ganglion is a collection of (a) neuron cell...Ch. 12 - A synapse between a terminal bouton and a neuron...Ch. 12 - Myelin is most like which of the following cell...Ch. 12 - Prob. 10RQCh. 12 - Afferent neurons of the PNS synapse in the CNS...Ch. 12 - Prob. 12RQCh. 12 - Prob. 13RQCh. 12 - Place the connective tissue coverings surrounding...Ch. 12 - Define proprioception.Ch. 12 - Prob. 16RQCh. 12 - Prob. 17RQCh. 12 - Distinguish gray matter from white matter of the...Ch. 12 - What is distinctive about the appearance of a cell...Ch. 12 - Describe the differences between neurons and...Ch. 12 - Distinguish a nerve from a nerve fiber and a...Ch. 12 - Prob. 22RQCh. 12 - Draw a reflex arc in place in the nervous system...Ch. 12 - Prob. 24RQCh. 12 - Why are the cell bodies of sensory neurons located...Ch. 12 - Prob. 26RQCh. 12 - Two anatomists were arguing about a sensory...Ch. 12 - An MRI scan and other diagnostic tests indicated...Ch. 12 - Prob. 3CRCAQCh. 12 - Rochelle developed multiple sclerosis when she was...Ch. 12 - Reflexes can be somatic (as in the knee-jerk...Ch. 12 - Prob. 6CRCAQ
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- Cell bodies of UMN that synapse on LMN lie in all of these areas EXCEPT a) Medulla b) Thalamus c) Pre-motor cortex d) Pons e) Primary motor cortexarrow_forwardIdentify and label the following structures on the neuron model figure below: cell body, dendrites, neuron nucleus, neurolemma, axon hillock, nucleus of Schwann cell, Nissl bodies, myelin sheath, axon, node of Ranvier, axon terminals (of neurons synapsing with model neuron), endoneurium (refer to Figure 10.6). 3) 11arrow_forwardWhich of the following is true regarding the difference between graded and action potentials? a.) Action potential occur only when the surface of the neuron is myelinated, but graded potentials occur in both in both myelinated and non-myelinated neurons. b.) The magnitude of action potential depends on the magnitude of the stimulus, whereas graded potentials are all or none. c.) The magnitude of graded potential depends on the magnitude of the stimulus, whereas action potentials are all or none.arrow_forward
- Name four types of glial cells in the Central Nervous System, and list a function for each of these cells: Type of glial cell Functions а. b. C. d. Name the Peripheral Nervous System (PNS) glial cell that forms myelin: (0.5 points) Name the PNS glial cell that ssurrounds neuron cell bodies in ganglia:(0.5 points)arrow_forwardQue:- Motoe lind plate diffee from neucon synape by all the followeng except:- nemon to a) Seconday ymaptic bleft . b) Toeminal button s myelinatid Presence f Aeynaptic Vesicles in teuminal beutton d) the neuroteane mittu is acetyl choline -arrow_forwardCentral nervous system (CNS) and peripheral nervous system (PNS) are two systems innervous system that control human movement and activity.(a) Describe the pathway of receiving and transferring information in neuron.arrow_forward
- Which type of neuron, based on its shape, is bestsuited for relaying information directly from one neuron toanother? Explain why.arrow_forwardAssume that two nerve fibers have the same diameter, but one ismyelinated and the other is unmyelinated. The conduction of anaction potential is most energy-efficient along which type of fiber?(Hint: Think about the required ATP.)arrow_forwardsometimes the terms neuron and nerve are mistakenly used interchangeably. explain the difference between the two structures.arrow_forward
- a) Describe the behavior of an unaffected neuron sitting at its membrane resting potentialstimulated by a suprathreshold stimulus.b) Now, add the effects of the consumption of the Fugu toxin and stimulate that neuron with a supra-threshold stimulus.- Describe (and/or diagram) the effect on the membrane potential by supra-thresholdstimulation under this condition.c. Using any ONE (1) of the following three (3) means we have used to interpret the resultingmembrane potential for a neuron, describe the effect of the Fugu toxin on a neuron:i) Goldman’s equationii) “Driving” toward Ex of most permeable ioniii) Movement/flow of charge + chargesarrow_forward72) Assume we can record spatially related neural activity from the entorhinal cortex and hippocampus of human. You are on vacation in London and have a map to find the Tower of London (you also do not have a smartphone). a) What spatially related activity would you see in the entorhinal cortex as you are walking around London with your map with Cartesian coordinates? (1-2 sentences. b) What activity pattern would you see in the hippocampus as you were moving toward your destination? (1-2 sentences.arrow_forwardMulti-cell recordings from the human motor cortex can be used to guide a robotic arm. Discuss BCI and action control: a) How the woman controls the robotic arm b) She has been paralyzed for over 20 years, but this BCI system still works for her. What does that mean? c) What kinds of information do motor neurons code?arrow_forward
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