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, Problem 12MC
Identify the neuronal circuits described by choosing the correct response from the key.
Key: (a) converging (c) parallel after-discharge
(b) divergin (d) reverberating
_____(1) Impulses continue around and around the circuit until one neuron stops firing.
_____(2) One or a few inputs ultimately influence large numbers of neurons.
_____(3) Many neurons influence a few neurons.
_____(4) May be involved in exacting types of mental activity.
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Temporal summation of excitatory inputs onto a neuron (we will refer to that neuron as Neuron A) refers to the... (Check all the following that can correctly complete this sentence)
a.) additive effect of simultaneous inputs from multiple neurons on to Neuron A
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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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- D Threshold B A . Earrow_forwardA common feature of action potentials is that they(A) cause the membrane to hyperpolarize and then depolarize.(B) can undergo temporal and spatial summation.(C) are triggered by a depolarization that reaches threshold.(D) move at the same speed along all axons.arrow_forwardNeurons are highly specialized cells whose form matches their function. They are highly elongated cells that conduct [Select ] a. ["electrical", b. "chemical"] signals across large distances, and [ Select ] ["chemical", b. "electrical"] a. signals across tiny spaces between neurons called [ Select ] a. ["hillocks", b. "Summations", c. "synapses"] . Neurons use vast amounts of energy to maintain the [Select] a. ["polarization", b."resting membrane potential", c. "action potential through the actions of [ Select ] a. ["sodium-potassium pumps", b."voltage-gated sodium channels", c."voltage-gated potassium channels"] . In doing so both sodium and potassium are trafficked against their concentration gradients leading to high concentrations of sodium [Select ] a. ["inside" , b. "outside"] the cell, and high concentrations of potassium [ Select ]arrow_forward
- Label the structures in the following diagram of a neuron. (a) ______________ (b) ______________(c) ______________ (d) ______________(e) ______________ (f) ___________(g) ______________arrow_forwardIf two action potentials from two different presynaptic nerve cells reach the target cell at the same time ... Group of answer options ... temporal summation occurs. ... spatial summation takes place. . .. an IPSP is formed. ... an EPSP is formed.arrow_forwardBoth electrical and chemical synapses trigger passage of ions across the post-synaptic membrane. (i) Which one of these synapses also allows passage of molecules other than ions across the post-synaptic membrane? (ii) What purpose does an electrical synapse serve? A. Electrical synapse; (ii) dissociate neuronal firing among a group of neurons B. Chemical synapse, (ii) to synthesize IP3 C. (i) Chemical synapse, (ii) slow neurotransmission D. Chemical synapse, (ii) silence neuronal firing O E. (i) Electrical synapse, (ii) fast neurotransmission for synchronized firingarrow_forward
- If two action potentials come very close to each other in one and the same presynaptic terminal ... Group of answer options ... temporal summation occurs. ... the second action potential beats out the first. ... an IPSP is formed. ... spatial summation takes place.arrow_forwardMatch the description with the statement that best describes the following neural circuits. a single post-synaptic neuron receives input from multiple pre- synaptic neurons causes the stimulation of the post-synaptic neuron continually similar to a positive feedback response A. diverging circuits B. converging circuits C. reverberating circuits causes a longer lasting stimulus of the post-synaptic neuron D. parallel after discharge circuits a single pre-synaptic neuron synapses with multiple post-synaptic neurons Moving to another question will save this response. Photos A39 DEC 3 17 étvarrow_forwardAction potentials move along different axons at different speeds. The slowest speed of conduction will be found in A) large unmyelinated axons B) small unmyelinated axons C) large myelinated axons D) small myelinated axonsarrow_forward
- The loss of positive ions from the interior of a neuron produces, (a) depolarization. (b) threshold. (c) hyperpolarization. (d) an action potential.arrow_forwardSelect the best answer or answers from the choices given: An IPSP is inhibitory because (a) it hyperpolarizes the postsynaptic membrane, (b) it reduces the amount of neurotransmitter released by the presynaptic terminal,(c) it prevents calcium ion entry into the presynaptic terminal, (d) it changes the threshold of the neuron.arrow_forwardTaylor accidentally dips his fingers into a cup filled with steaming hot coffee. He immediately withdraws his hand and then exclaims “ouch!”What is the correct order of the nervous system structures involved in the scenario described above? Select one: a. sensory neuron, effector, motor neuron, interneuron b. motor neuron, receptor, sensory neuron, effector c. receptor, sensory neuron, interneuron, motor neuron d. sensory neuron, interneuron, effector, motor neuronarrow_forward
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