Human Physiology: From Cells to Systems (MindTap Course List)
9th Edition
ISBN: 9781285866932
Author: Lauralee Sherwood
Publisher: Cengage Learning
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Chapter 5, Problem 3RE
Stellate cells initially process sensory input to the cortex, whereas pyramidal cells send fibers from the cortex to terminate on efferent motor neurons. (True or false)
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Chapter 5 Solutions
Human Physiology: From Cells to Systems (MindTap Course List)
Ch. 5.1 - Draw a flow diagram showing the organization of...Ch. 5.1 - Prob. 2CYUCh. 5.1 - Prob. 3CYUCh. 5.2 - Prob. 1CYUCh. 5.2 - Prob. 2CYUCh. 5.2 - Prob. 3CYUCh. 5.3 - Prob. 1CYUCh. 5.3 - Outline the components of the brain from the least...Ch. 5.3 - Prob. 3CYUCh. 5.4 - Prob. 1CYU
Ch. 5.4 - Prob. 2CYUCh. 5.4 - Prob. 3CYUCh. 5.4 - Prob. 4CYUCh. 5.5 - Prob. 1CYUCh. 5.5 - Prob. 2CYUCh. 5.5 - Prob. 3CYUCh. 5.6 - Prob. 1CYUCh. 5.6 - Prob. 2CYUCh. 5.6 - Prob. 3CYUCh. 5.7 - Prob. 1CYUCh. 5.7 - Prob. 2CYUCh. 5.7 - Prob. 3CYUCh. 5.7 - Prob. 4CYUCh. 5.8 - Prob. 1CYUCh. 5.8 - Prob. 2CYUCh. 5.9 - Prob. 1CYUCh. 5.9 - Prob. 2CYUCh. 5.9 - Prob. 3CYUCh. 5.10 - Prob. 1CYUCh. 5.10 - Prob. 2CYUCh. 5 - Prob. 1RECh. 5 - In emergencies when O2 supplies are low, the brain...Ch. 5 - Stellate cells initially process sensory input to...Ch. 5 - Prob. 4RECh. 5 - Prob. 5RECh. 5 - Prob. 6RECh. 5 - Prob. 7RECh. 5 - Prob. 8RECh. 5 - Prob. 9RECh. 5 - Prob. 10RECh. 5 - Prob. 11RECh. 5 - Prob. 12RECh. 5 - Prob. 13RECh. 5 - Discuss the function of each of the following:...Ch. 5 - Prob. 2UCCh. 5 - Prob. 3UCCh. 5 - Prob. 4UCCh. 5 - Prob. 5UCCh. 5 - Prob. 6UCCh. 5 - Prob. 7UCCh. 5 - Prob. 8UCCh. 5 - Prob. 9UCCh. 5 - Prob. 10UCCh. 5 - Prob. 11UCCh. 5 - Prob. 12UCCh. 5 - Prob. 13UCCh. 5 - Prob. 14UCCh. 5 - Distinguish between a monosynaptic and a...Ch. 5 - Julio D., who had recently retired, was enjoying...Ch. 5 - Prob. 1TAHLCh. 5 - Prob. 2TAHLCh. 5 - The hormone insulin enhances the carrier-mediated...Ch. 5 - Prob. 4TAHLCh. 5 - Under what circumstances might it be inadvisable...
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- A neuron responds to adequate stimulation with _______, a type of self-propagating signal.arrow_forwardExplain what happens when an action potential reaches the axon terminus (terminal) by activating the receptors on the postsynaptic membrane. Explanation addressing the question above When an action potential, or nerve impulse, arrives at the axon terminal, it activates voltage-gated calcium channels in the cell membrane. Which is present at a much higher concentration outside the neuron than inside, rushes into the cell. The Ca2+ allows synaptic vesicles to fuse with the axon terminal membrane, releasing neurotransmitters into the synaptic cleft. The molecules of neurotransmitters diffuse across the synaptic cleft and bind to receptor proteins on the postsynaptic cell. Activation of postsynaptic receptors leads to the opening or closing of ion channels in the cell membrane. This may be depolarizing, making the inside of the cell more positive, or hyperpolarizing making the inside more negative depending on the ions involved. The excitatory and inhibitory postsynaptic potentials…arrow_forwardA voltmeter is used to measure the potential difference across a neuron’s membrane. A change in potential difference will occur when an action potential is generated. A neurologist uses a giant squid neuron to study the propagation of an action potential. She places two voltmeters on the axon membrane to measure the potential difference: one near the dendrite and the other at the axon terminal. A stimulus is then applied. Often, the stimulus is applied at one end of the neuron. In this experiment, the scientist decides to stimulate the middle of the neuron. Which statement describes what the scientist would observe at the voltmeters? Select one: a. Both voltmeters will indicate changes to the potential difference. b. No changes to the potential differences will be registered at the voltmeters. c. The voltmeter at the dendrite will indicate a change to the potential difference. d. The voltmeter at the axon terminal will indicate a change to the potential difference.arrow_forward
- A voltmeter is used to measure the potential difference across a neuron’s membrane. A change in potential difference will occur when an action potential is generated. A neurologist uses a giant squid neuron to study the propagation of an action potential. She places two voltmeters on the axon membrane to measure the potential difference: one near the dendrite and the other at the axon terminal. A stimulus is then applied. Often, the stimulus is applied at one end of the neuron. In this experiment, the scientist decides to stimulate the middle of the neuron. Which statement describes what the scientist would observe at the voltmeters? a. Both voltmeters will indicate changes to the potential difference. b. No changes to the potential differences will be registered at the voltmeters. c. The voltmeter at the dendrite will indicate a change to the potential difference. d. The voltmeter at the axon terminal will indicate a change to the potential difference.arrow_forwardSomatic sensory and somatic motor information are propagated via specialized neurons. If you dip your toes in a hot tub before entering the tub, the action potentials generated by the water temperature travels via which of the following structures before it can be perceived by you? O unipolar neurons from the toes to the spinal nerve, ventral root, spinal cord, thalamus, primary somatosensory cortex O unipolar neurons from the toes to the spinal nerve, dorsal root, spinal cord, thalamus, primary somatosensory cortex O multipolar neurons from the toes to the spinal nerve, ventral root, spinal cord, thalamus, primary somatosensory cortex O multipolar neurons from the toes to the spinal nerves, dorsal root, spinal cord, thalamus, primary somatosensory cortexarrow_forwardWhat effect would you expect an antagonist that targets the voltage sensing domain of perisynaptic calcium channels of an inhibitory interneuron have on the firing frequency of a finically active neuron that interneuron synapses onto? Explain in detailsarrow_forward
- The following table summarizes the characteristics of four different neurons. Based on these characteristics, which of these neurons would most likely have the slowest conduction velocity? Neuron #3 #4 O #1 O #2 #3 O #4 Diameter (μM) P Myelination noarrow_forwardBecause the long axons of neurons look like electrical wires, and both neurons and electrical wires conduct electricity, it is tempting to equate the two. Compare and contrast the functioning of axons and electrical wires in terms of their structure and the nature of the electrical signals they conduct. Please include references.arrow_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_forward
- Cystic fibrosis is a degenerative disease that causes the progressive breakdown of the myelin sheaths around the axons of neurons. Which of the following best describes the likely effect of cystic fibrosis on neuronal function? A B C D an inhibition in the release of neurotransmitters at the synaptic terminal a decrease in the conduction speed of the action potential along neuronal axons an unstoppable generation of action potential in affected neurons an inhibition in the generation of action potentials at neuronal dendritesarrow_forwardWhich of the following statements about action potentials and information transmission in the synaptic cleft is FALSE? 1. Action potentials determine the amount of neurotransmitters that are released into the synaptic cleft 2.Action potentials ultimately result in more calcium leaving the target cell at the postsynaptic membrane 3. Action potentials determine the duration that neurotransmitters are released into the synaptic cleft 4. Action potentials ultimately result in more calcium entering the neuron at the axon terminalarrow_forwardWhat function do unipolar neurons provide and where is their cell body found? They are motor neurons with their cell body in the central nervous system They are sensory neurons with their cell body located in the central nervous system They are motor neurons with their cell body located outside of the central nervous system They are sensory neurons with their cell body located outside of the central nervous systemarrow_forward
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