Anatomy & Physiology (6th Edition)
6th Edition
ISBN: 9780134156415
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Textbook Question
Chapter 11.3, Problem 8CYU
MAKING CONNECTIONS Which part of the neuron is its fiber? How do nerve fibers differ from the fibers of connective tissue (see the chapter Tissue: The Living Fabric Chapter 4) and the fibers in muscle (see the chapter Muscles and Muscle Tissue Chapter 9)?
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Part 2- The Function of the Nervous System Use the information in
your lecture slides and handouts to answer the following questions
about the function of the nervous system
(A) Label the parts of the neuron indicated below
(B) Indicate using an arrow the direction an electrical impulse would move
during synaptic transmission
Тext
(the inner part)
(the outer part)
neuron (cell body)
(C) In the space provided, write the letter of the description that best matches
the term or phrase.
Depolarisation & repolarisation in metaneuron - put the following events in order (from 1 to
4).
Membrane potential crosses the threshold potential and an action potential is achieved.
Depolarisation occurs when the applied current is sufficient to move membrane potential
towards neutral.
The neuron's membrane potential drops below the initial resting membrane potential and
temporarily becomes refractory to further action potentials.
Membrane quickly repolarises by opening of Kt channels, allowing K* ions to leave the cell
and charge separation to be re-established.
Chapter 11 Solutions
Anatomy & Physiology (6th Edition)
Ch. 11.1 - What is meant by integration, and does it...Ch. 11.1 - Which subdivision of the PNS is involved in (a)...Ch. 11.2 - Which type of neuroglia controls the extracellular...Ch. 11.2 - Which two types of neuroglia form insulating...Ch. 11.3 - How does a nucleus within the brain differ from a...Ch. 11.3 - How is a myelin sheath formed in the CNS, and what...Ch. 11.3 - Which structural and functional type of neuron is...Ch. 11.3 - MAKING CONNECTIONS Which part of the neuron is its...Ch. 11.4 - For an open channel, what factors determine in...Ch. 11.4 - Prob. 10CYU
Ch. 11.5 - What determines the size of a graded potential?Ch. 11.6 - Which is bigger, a graded potential or an action...Ch. 11.6 - An action potential does not get smaller as it...Ch. 11.6 - Why does a myelinated axon conduct action...Ch. 11.6 - If an axon receives two stimuli close together in...Ch. 11.7 - Events at a chemical synapse usually involve...Ch. 11.7 - What structure joins two neurons at an electrical...Ch. 11.8 - Which ions flow through chemically gated channels...Ch. 11.8 - Prob. 19CYUCh. 11.9 - Prob. 20CYUCh. 11.9 - Why is cyclic AMP called a second messenger?Ch. 11.10 - Which types of neural circuits would give a...Ch. 11.10 - Prob. 23CYUCh. 11.10 - What pattern of neural processing occurs when we...Ch. 11 - Which of the following structures is not part of...Ch. 11 - Match the names of the supporting cells found in...Ch. 11 - Assume that an EPSP is being generated on the...Ch. 11 - Prob. 3MCCh. 11 - The velocity of nerve impulse conduction is...Ch. 11 - Chemical synapses are characterized by all of the...Ch. 11 - Biogenic amine neurotransmitters include all but...Ch. 11 - Prob. 8MCCh. 11 - Inhibition of acetylcholinesterase by poisoning...Ch. 11 - The anatomical region of a multipolar neuron where...Ch. 11 - An IPSP is inhibitory because (a) it...Ch. 11 - Identify the neuronal circuits described by...Ch. 11 - Explain both the anatomical and functional...Ch. 11 - (a) Describe the composition and function of the...Ch. 11 - (a) What is myelin? (b) How does the myelination...Ch. 11 - (a) Contrast unipolar, bipolar, and multipolar...Ch. 11 - What is the polarized membrane state? How is it...Ch. 11 - Describe the events that must occur to generate an...Ch. 11 - Prob. 19SAQCh. 11 - (a) Explain the difference between an EPSP and an...Ch. 11 - Since at any moment a neuron is likely to have...Ch. 11 - The effects of neurotransmitter binding are very...Ch. 11 - Prob. 23SAQCh. 11 - Prob. 24SAQCh. 11 - Elaine Sawyer, 35, was on her way to the local...Ch. 11 - Elaine Sawyer, 35, was on her way to the local...Ch. 11 - Elaine Sawyer, 35, was on her way to the local...Ch. 11 - Elaine Sawyer, 35, was on her way to the local...Ch. 11 - Elaine Sawyer, 35, was on her way to the local...
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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
- Two organelles of neuron that are critical to that cell type’s function and what do these organelles do that allow neurons to do its job?arrow_forwardDepolarisation & repolarisation in metaneuron - put the following events in order (from 1 to 4). Membrane potential crosses the threshold potential and an action potential is achieved. Depolarisation occurs when the applied current is sufficient to move membrane potential towards neutral. The neuron’s membrane potential drops below the initial resting membrane potential and temporarily becomes refractory to further action potentials. Membrane quickly repolarises by opening of K+ channels, allowing K+ions to leave the cell and charge separation to be re-established.arrow_forwardCHAPTER 11: Functional Organization of Nervous Tissue A. Question If an axon has been severed, so that it is no longer connected to its neuron cell body, what will be the effect on the distal and proximal portions of the axon? Explain your predictionarrow_forward
- Nervous tissue provides control of other organs and sends messages through- out your body. When you touch the rough bark on a pine tree, the branched parts of the neuron pass the message along to allow you to process the feeling of the tree bark. Which of the following is the branched section of the neuron that receives the signal from the stimulus? ↑ Rarrow_forwardActivation of which pathway leads to a disinhibition of the thalamus and increased cortical activation? Basal nuclei D Cortex I GABA - Glutamate - Dopamine Striatum C B GPe A GPi/SNr SNC STN GPI/SNr Thalamus O Both B and C O B O A E LK C Fn Altarrow_forwardQUESTION 1 Matching. Match the tissue type to its anatomy or physiology. Use letters more than once. made of specialized cells called neurons and neuroglia - vmade of cells, cells, and cells made of cells, extracellular proteins, and a "fluid" ground substance made of cells with lots of microfilament (actin/myosin) 'proteins inside them |can appear striated under the microscope A. connective Jare under another type of tissue to supply its blood needs B. epithelial can function as an area of absorption, secretion (letting substances pass through), or protection C. muscle makes up organs that gather information and make decisions about what to do and then give directions to the body D. nervouS v contract coat and cover surfaces exposed to the external environment and make glands send electrical signals through body do many jobs in the body including carrying gases, storing energy, acting as bony levers Click Save and Submit to save and submit. Click Save All Answers to save all answers.arrow_forward
- Watch this video (http://openstaxcollege.org/l/summation) to learn about summation. The process of converting electrical signals to chemical signals and back requires subtle changes that can result in transient increases or decreases in membrane voltage. To cause a lasting change in the target cell, multiple signals are usually added together, or summated. Does spatial summation have to happen all at once, or can the separate signals arrive on the postsynaptic neuron at slightly different times? Explain your answer.arrow_forwardVisit this site (http://openstaxcollege.org/l/nervetissue3) to learn about how nervous tissue is composed of neurons and glial cells. The neurons are dynamic cells with the ability to make a vast number of connections and to respond incredibly quickly to stimuli and to initiate movements based on those stimuli. They are the focus of intense research as failures in physiology can lead to devastating illnesses. Why are neurons only found in animals? Based on what this article says about neuron function, why wouldnt they be helpful for plants or microorganisms?arrow_forwardWhich of the following best describes structure 7? 6 1 2 4. 7 Receive signals from other cells Type of glial cell Gaps that allow for nerve impulses to travel quickly Releases neurotransmitters Transfers signals; can range from 1 mm to 1 m in length Functions include protecting and insulating the cell Neuron's nucleus is found herearrow_forward
- Which of the following best describes structure 5? 6 1 2 4 7 Functions include protecting and insulating the cell Releases neurotransmitters Neuron's nucleus is found here Gaps that allow for nerve impulses to travel quickly Type of glial cell Receive signals from other cells Transfers signals; can range from 1 mm to 1 m in lengtharrow_forwardpart 1: What is the membrane topology of typical voltage-gated ion channels and how are they sensitive to voltage? Part 2: Explain the differences in the relative selectivity of voltage-gated Na and K channels.arrow_forwardWhich of the following best describes structure 6? 6 3 4 7 Releases neurotransmitters Gaps that allow for nerve impulses to travel quickly Neuron's nucleus is found here Type of glial cell Receive signals from other cells Transfers signals; can range from 1 mm to 1 m in length Functions include protecting and insulating the cellarrow_forward
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