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
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Textbook Question
Chapter 12, Problem 12RQ
Which term describes a bundle of axons in the peripheral nervous system?
- nucleus
- b. ganglion
- tract
- nerve
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Name the structure that the arrow is pointing at?A. DendriteB. Axon hillock C. Cell bodyD. Synaptic snobE. Node of ranvier
This is a biology question regarding nerve impulses.
Neurofibromatosis type 1 is a condition where tumours can grow in the nerves near the skin. The growth of tumours prevents the action potentials from quickly travelling through the neurons. Identify the nerve structure from the image below and the division of the nervous system affected by neurofibromatosis type 1.
CNS = Central Nervous System
PNS = Peripheral Nervous System
Select one:
a.
Nerve Structure
Division of Nervous System
3
PNS
b.
Nerve Structure
Division of Nervous System
4
CNS
c.
Nerve Structure
Division of Nervous System
5
PNS
d.
Nerve Structure
Division of Nervous System
1
CNS
Explain how a nervous impulse is transmitted along the axon of a nerve cell, including the transmission across the junction between one neurone and the next.
(Chemical impulse not electrical)
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...
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- Neurons contain ________, which can receive signals from other neurons. a. axons b. mitochondria c. dendrites d. Golgibodiesarrow_forwardWhich part of the nervous system directly controls the digestive system? a. parasympathetic nervous system b. central nervous system c. spinal cord d. sensory-somatic nervous systemarrow_forwardDuring repolarization,the sodium channels are closed.How does this affect a neuron? a. the neuron cannot respond to new stimuli b.The neuron becomes more sensitive to new stimuli c.the neuron can respond to new stimuliarrow_forward
- What happens to the membrane potential of a neuron when an action potential is stimulated? A. The membrane potential goes from positive to negative. B. The membrane potential remains positive. C. The membrane potential goes from negative to positive. D. The membrane potential remains negative.arrow_forwardThe pilomotor reflex is activated when a person experiences a strong emotion such as excitement or fear. This reflex raises hairs on the body, causing what's commonly called goosebumps. This reflex is a result of which division of the nervous system? A. Somatic nervous system B. Sympathetic nervous system C. Central nervous system D. Parasympathetic nervous systemarrow_forwardWhich precedes an action potential traveling down the axon of a neuron? A. Neurotransmitters bind to receptors on the dendrite of the neuron. В. Neurotransmitters are released from the axon terminals of the neuron. C. The action potential travels through the synapse from a nearby neuron. D. Vesicles in the axon terminal release their contents at the synapse. E. The cell body releases neurotransmitters down the length of the axon.arrow_forward
- Write a paragraph (100-120 words) to outline how the central nervous systems regulates the function of the autonomous nervous systemarrow_forwardWhy is the speed of nerve transmission faster along axons than across synapses? a. The movement of neurotransmitters is faster along axons. b. The movement of neurotransmitters is faster across synapses. c. The movement of neurotransmitters is slower across synapses. d. The movement of neurotransmitters is slower along axons.arrow_forwardWhich part of a neuron transmits an electrical signal toa target cell?a. dendritesb. somac. cell bodyd. axonarrow_forward
- Lidocaine is an anesthetic that is used to prevent the propagation of action potentials. Which compartment would lidocaine MOST likely target? A. axon B. dendrite C. soma D. synaptic cleftarrow_forwardThe part of a neuron that contains the nucleus is the a. cell body b. dendrite c. axon d. glialarrow_forwardWhich bulb shaped structures found at the end of neurons form connections with the dendrites and somas of other neurons and allow information to pass from one neuron to another? A. Myelin sheaths B. Ion channels C. Axon terminals D. Dendrite arcsarrow_forward
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