Campbell Biology: Custom Edition
18th Edition
ISBN: 9781323717271
Author: Urry, Cain, Wasserman, Minorsky, Reece
Publisher: PEARSON C
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Textbook Question
Chapter 48.1, Problem 2CC
Describe the basic pathway of information flow through neurons that causes you to turn your head when someone calls your name.
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Chapter 48 Solutions
Campbell Biology: Custom Edition
Ch. 48.1 - Prob. 1CCCh. 48.1 - Describe the basic pathway of information flow...Ch. 48.1 - WHAT IF? How might increased branching of an axon...Ch. 48.2 - Under what circumstances could ions flow through...Ch. 48.2 - WHAT IF? Suppose a cell's membrane potential...Ch. 48.2 - MAKE CONNECTiONS Review Figure 7.10, which...Ch. 48.3 - How do action potentials and graded potentials...Ch. 48.3 - In multiple sclerosis (from the Greek skleros,...Ch. 48.3 - How do both negative and positive feedback...Ch. 48.3 - WHAT IF? Suppose a mutation caused gated sodium...
Ch. 48.4 - Prob. 1CCCh. 48.4 - Some pesticides inhibit acetylcholinesterase, the...Ch. 48.4 - Prob. 3CCCh. 48 - How would severing an axon affect the flow of...Ch. 48 - Suppose you placed an isolated neuron in a...Ch. 48 - Prob. 48.3CRCh. 48 - Prob. 48.4CRCh. 48 - Level 1: Knowledge/Comprehension 1. What happens...Ch. 48 - Level 1: Knowledge/Comprehension 1. What happens...Ch. 48 - Where are neurotransmitter receptors located? (A)...Ch. 48 - Why are action potentials usually conducted in one...Ch. 48 - Which of the following is the most direct result...Ch. 48 - Suppose a particular neurotransmitter causes an...Ch. 48 - WHAT IF? Ouabain, a plant substance used in some...Ch. 48 - Prob. 8TYUCh. 48 - DRAW IT Suppose a researcher inserts a pair of...Ch. 48 - EVOLUTION CONNECTION An action potential is an...Ch. 48 - Prob. 11TYUCh. 48 - WRITE ABOUT A THEME: ORGANIZATION In a short essay...Ch. 48 - Prob. 13TYU
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- Applying a pressure stimulus to the fluid-filled capsule of an isolated Pacinian corpuscle causes a brief burst of action potentials in the afferent neuron, which ceases until the pressure is removed, at which time another brief burst of action potentials occurs. If an experimenter removes the capsule and applies pressure directly to the afferent neuron ending, action potentials are continuously fired during the stimulus. Explain these results in the context ofadaptation.arrow_forwardThe serves as gateway routing all signals coming from brain stem to cerebral cortex - 1)Hypothalamus 2)Thalamus 3)corpus Calilosum 4)cerebrum 5)Corpus Callosumarrow_forward. Describe the basic pathway of information flow throughneurons that causes you to turn your head when someone calls your name.arrow_forward
- Excess neural connections within the brain are reduced through a process of accommodation. true or falsearrow_forwardFollowing administration of an opiate drug, "pain signals" are prevented from getting out of the spinal cord via two mechanisms. One inhibits spinal cord neurons that communicate with the parafascicular nucleus of the thalamus. What is the other way that pain signals are stopped? dendro-dendritic synapses that enhance IPSI's in somatosensory neurons. the disinhibition of long axons that start in the spinal cord and influence free nerve endings directly. O a feedback loop to the periaquedictal grey of the midbrain, which enhances neural activity in that area. axo-axonic synapses that prevents somatosensory neurons from releasing neurotransmitter.arrow_forwardThe thalamus has been described as a “switchboard.” Explain why, by describing the pathway of somatic sensory information from the receptors to the cerebral cortex.arrow_forward
- In what way does the interior surface of the cell membrane of a resting (non-conducting) neuron differ from the external environment? The interior is: positively charged and contains less sodium. negatively charged and contains less sodium. negatively charged and contains less potassium positively charged and contains more sodium.arrow_forwardAre there certain locations for the processing of specific sensory, integrative and motor signals in the cortex?arrow_forwardYou are recording from a touch receptor in skin. When you stimulate a spot on the skin, the receptor fires continuously until you stop the skin stimulation. Which of the following pieces of information would you need to be able to identify what kind of receptor this is? Group of answer choices Whether the area of skin that can activate this receptor is big or small Whether the receptor sends its output to the somatosensory cortex or not You don’t need any more information; you can identify this receptor just from the information provided Whether the touch receptor is connected to an Alpha-Delta fiber or a C-fiberarrow_forward
- certain inhaled anesthetic agents are thought to open chlorine ion channels in the membranes of postsynaptic neurons in the brain, an effect that causes IPSPs. why might this action put a person "to sleep" during anesthesia?arrow_forwardIf a mosquito bites you in the forearm, action potentials will have to reach the CNS before you can perceive the bite and react by swatting the mosquito. Which one of the following is the correct sequence of events that takes place from the time the mosquito bites you until you swat it? O somatic sensory receptors, afferent division, primary somatosensory cortex, primary motor cortex, efferent division, SNS, skeletal muscles O visceral sensory receptors, afferent division, primary somatosensory cortex, primary motor cortex, efferent division, SNS, skeletal muscles somatic sensory receptors, efferent division, primary somatosensory cortex, primary motor cortex, afferent division, SNS, skeletal muscles special sensory receptors, afferent division, primary somatosensory cortex, primary motor cortex, efferent division, SNS, skeletal musclesarrow_forwardTraumatic damage to the spinal cord is common. Based on the information in Figure 2 and Table 2, is it possible that an entire column of white matter could be damaged without causing any problems with movement? Explain your answer carefully and thoroughly.arrow_forward
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