MASTERING A&P NEW DESIGN ACCESS
18th Edition
ISBN: 9781323842423
Author: Pearson
Publisher: Pearson Custom Publishing
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Chapter 11, Problem 2CYU
Summary Introduction
To review:
The overall effect on action potential when a drug inhibits the K+ (potassium ions) channels.
Introduction:
The sequential depolarization and repolarization of a cell contribute toward an action potential, which is primarily governed by two voltage-gated channels, namely, K+ channels/potassium ion channels and Na+ channels/sodium ion channels. The opening and closing of these channels determine the precise state of cellular excitability.
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Chapter 11 Solutions
MASTERING A&P NEW DESIGN ACCESS
Ch. 11.1 - What are the organs of the CNS?Ch. 11.1 - Prob. 2QCCh. 11.1 - Describe the sensory, integrative, and motor...Ch. 11.1 - 4. What are the differences between the somatic...Ch. 11.1 - How does the somatic motor division of the PNS...Ch. 11.2 - What are the functions of the cell body,...Ch. 11.2 - What are the structural differences between...Ch. 11.2 - What are the functional differences between...Ch. 11.2 - What are the functions of astrocytes?Ch. 11.2 - Prob. 5QC
Ch. 11.2 - Prob. 6QCCh. 11.2 - 7. What is the function of the myelin sheath?
Ch. 11.2 - How does the myelin sheath differ in the CNS and...Ch. 11.2 - Are neurons more likely to regenerate in the CNS...Ch. 11.2 - Prob. 10QCCh. 11.3 - 1. What is the resting membrane potential?
Ch. 11.3 - In and around the axon, where is the higher...Ch. 11.3 - Prob. 3QCCh. 11.3 - 4. Define local potential. Why is it also called...Ch. 11.3 - Why are local potentials useful only for...Ch. 11.3 - What takes place during the depolarization phase...Ch. 11.3 - 7. What must be reached in order for...Ch. 11.3 - 8. What takes place during the repolarization and...Ch. 11.3 - 9. What are the absolute and relative refractory...Ch. 11.3 - 10. How do local potentials and action potentials...Ch. 11.3 - Which is useful for long-distance signaling, and...Ch. 11.3 - 12. How is an action potential propagated down an...Ch. 11.3 - Prob. 13QCCh. 11.4 - What are three locations where presynaptic axons...Ch. 11.4 - Define synaptic transmission.Ch. 11.4 - Prob. 3QCCh. 11.4 - How do the two types of postsynaptic potentials...Ch. 11.4 - Prob. 5QCCh. 11.4 - Prob. 6QCCh. 11.5 - Prob. 1QCCh. 11.5 - Prob. 2QCCh. 11.5 - Prob. 3QCCh. 11.5 - Prob. 4QCCh. 11.5 - Prob. 5QCCh. 11.5 - Prob. 6QCCh. 11.6 - 1. Why are neurons organized into neuronal...Ch. 11.6 - Prob. 2QCCh. 11.6 - 3. What mechanisms stabilize neural circuits?
Ch. 11 - Which of the following statements about the...Ch. 11 - 2. Regulation of heart rate, blood pressure, and...Ch. 11 - Match each type of neuroglial cell with its...Ch. 11 - 4. Mark the following statements as true or false....Ch. 11 - 5. An axon is best defined as a process that:
a....Ch. 11 - 6. Fill in the blanks: The myelinated segment of...Ch. 11 - 7. Fill in the blanks: The _______is the period of...Ch. 11 - 8. Which of the following statements best...Ch. 11 - 9. Identify the following as properties of...Ch. 11 - The trigger for exocytosis of synaptic vesicles...Ch. 11 - Match the following neurotransmitters with their...Ch. 11 - 12. Which of the following is not a method by...Ch. 11 - 13. A ________is characterized by multiple input...Ch. 11 - Mark the following statements as true or false. If...Ch. 11 - Sequence the following list of events of a...Ch. 11 - 16. Mark the following statements as true or...Ch. 11 - 1. A drug that blocks channels in neurons does so...Ch. 11 - Prob. 2CYUCh. 11 - Why must a cell body be intact for an axon to...Ch. 11 - 4. Explain how an action potential is propagated...Ch. 11 - Prob. 1AYKACh. 11 - 2. During a surgical procedure, an...Ch. 11 - Albert accidentally ingests the poison...Ch. 11 - 4. Albert, the patient in question 3, takes the...Ch. 11 - Predict the effect that tetrodotoxin would have on...Ch. 11 - Explain what would happen if depolarization of the...
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