Anatomy & Physiology
3rd Edition
ISBN: 9781259398629
Author: McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher: Mcgraw Hill Education,
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Chapter 12, Problem 10DYB
Summary Introduction
Introduction:
An axon of a neuron has a small swelling at their end, which is called as axon terminal. This terminal lies very close to the dendrite of the next neuron. This close proximity of each neuron is called as synapse and the small gap between the synapses is called as the synaptic cleft. Synaptic transmission is a process of neuronal communication.
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Chapter 12 Solutions
Anatomy & Physiology
Ch. 12.1 - Prob. 1LOCh. 12.1 - Prob. 1WDLCh. 12.1 - Prob. 2LOCh. 12.1 - Prob. 3LOCh. 12.1 - What are the two primary functional divisions of...Ch. 12.1 - Prob. 4LOCh. 12.1 - Prob. 5LOCh. 12.2 - What are the three connective tissue wrappings in...Ch. 12.2 - Prob. 6LOCh. 12.2 - Prob. 4WDL
Ch. 12.2 - Prob. 7LOCh. 12.2 - Prob. 8LOCh. 12.2 - Prob. 5WDLCh. 12.2 - LEARNING OBJECTIVE
9. Distinguish between fast...Ch. 12.2 - Prob. 6WDLCh. 12.2 - Prob. 10LOCh. 12.2 - Prob. 11LOCh. 12.2 - Prob. 7WDLCh. 12.2 - Prob. 8WDLCh. 12.3 - Prob. 12LOCh. 12.3 - Prob. 13LOCh. 12.3 - Prob. 9WDLCh. 12.4 - Prob. 14LOCh. 12.4 - If a person has a brain tumor, is it more likely...Ch. 12.4 - Prob. 15LOCh. 12.4 - Prob. 11WDLCh. 12.4 - Prob. 12WDLCh. 12.4 - Prob. 16LOCh. 12.4 - Prob. 17LOCh. 12.4 - Prob. 13WDLCh. 12.5 - Prob. 18LOCh. 12.5 - Prob. 19LOCh. 12.5 - Prob. 14WDLCh. 12.5 - Prob. 15WDLCh. 12.6 - LEARNING OBJECTIVE
20. Distinguish between a pump...Ch. 12.6 - Prob. 16WDLCh. 12.6 - Prob. 21LOCh. 12.6 - LEARNING OBJECTIVE
22. Identify and describe the...Ch. 12.6 - Prob. 17WDLCh. 12.7 - Prob. 23LOCh. 12.7 - Prob. 18WDLCh. 12.7 - Prob. 24LOCh. 12.7 - Prob. 25LOCh. 12.7 - Prob. 26LOCh. 12.7 - Prob. 19WDLCh. 12.7 - Prob. 20WDLCh. 12.8 - Prob. 27LOCh. 12.8 - LEARNING OBJECTIVE
28. Compare and contrast the...Ch. 12.8 - Prob. 29LOCh. 12.8 - Prob. 1WDTCh. 12.8 - How are EPSP and IPSP graded potentials...Ch. 12.8 - LEARNING OBJECTIVE
30. Define summation, and...Ch. 12.8 - Prob. 22WDLCh. 12.8 - Prob. 31LOCh. 12.8 - Prob. 32LOCh. 12.8 - Prob. 33LOCh. 12.8 - How does depolarization and repolarization occur...Ch. 12.8 - Prob. 24WDLCh. 12.8 - Prob. 34LOCh. 12.8 - Prob. 35LOCh. 12.8 - Prob. 25WDLCh. 12.9 - Prob. 36LOCh. 12.9 - Prob. 26WDLCh. 12.9 - Prob. 37LOCh. 12.9 - Prob. 38LOCh. 12.9 - Prob. 27WDLCh. 12.9 - Prob. 39LOCh. 12.9 - Prob. 28WDLCh. 12.10 - Prob. 40LOCh. 12.10 - Prob. 41LOCh. 12.10 - Prob. 29WDLCh. 12.10 - LEARNING OBJECTIVE
42. Describe how acetylcholine...Ch. 12.10 - Prob. 43LOCh. 12.10 - WHAT DO YOU THINK?
2 Predict the general effect of...Ch. 12.10 - Prob. 30WDLCh. 12.10 - Prob. 44LOCh. 12.10 - Prob. 45LOCh. 12.10 - Prob. 31WDLCh. 12.11 - LEARNING OBJECTIVE
46. Identify the four different...Ch. 12.11 - Prob. 32WDLCh. 12.11 - Prob. 33WDLCh. 12 - _____ 1. The cell body of a neuron does all of the...Ch. 12 - Prob. 2DYBCh. 12 - Prob. 3DYBCh. 12 - Prob. 4DYBCh. 12 - Prob. 5DYBCh. 12 - Prob. 6DYBCh. 12 - _____ 7. An action potential is generated when...Ch. 12 - Prob. 8DYBCh. 12 - Prob. 9DYBCh. 12 - Prob. 10DYBCh. 12 - What are the four structural types of neurons? How...Ch. 12 - Prob. 12DYBCh. 12 - How does myelination differ between the CNS and...Ch. 12 - Describe the procedure by which a PNS axon may...Ch. 12 - Prob. 15DYBCh. 12 - Prob. 16DYBCh. 12 - Explain summation of EPSPs and IPSPs and the...Ch. 12 - Graph and explain the events associated with an...Ch. 12 - Prob. 19DYBCh. 12 - Prob. 20DYBCh. 12 - Prob. 1CALCh. 12 - Prob. 2CALCh. 12 - Prob. 3CALCh. 12 - Prob. 4CALCh. 12 - Sarah wants to call her new friend Julie and needs...Ch. 12 - Over a period of 6 to 9 months, Marianne began to...Ch. 12 - Prob. 2CSLCh. 12 - Prob. 3CSL
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- I. These forms the specialized junctions called synapse. A. Cell body B. Glial cells C. Synaptic terminal D. Neurotransmitters II. These are the gaps in the myelin sheath which is the site where signals are recharged as they travel down the axon. A. Neurotransmitters B. Axon hillock C. Dendrites D. Nodes of Ranvier III. These neurons form the local circuits that connect neurons in the brain A. Interneurons B. Axon hillock C. Dendrites D. Somaarrow_forwardA. Match the neuroglia cell with the correct function. A. Astrocytes B. Microglia C. Ependymal D. oligodendrocytes E. Schwann cells F. satellite cells 11. Cells that produce the myelin in the PNS. 12. Cells that produce the myelin in the CNS. 13. Phagocytes that dispose of debris such as dead brain cells and bacteria. 14. Anchors and braces neurons with cellular projections. 15. Cells have cilia that help circulate the cerebrospinal fluid. 16. Cells help cushion and protect neurons in the PNS. Cells serve as a medium for diffusion between capillaries and neurons. 17. Cells line cavities of the brain and spinal cord 18. onor that are sunnosed to be added to a plant in order to achieve the followingarrow_forwardWhich statement is true? Select one: a. All axons, dendrites, and cell bodies are myelinated b. Some axons are myelinated; all dendrites and cell bodies are unmyelinated C. All axons and dendrites are myelinated; cell bodies are unmyelinated d. Some axons, dendrites, and cell bodies are myelinatedarrow_forward
- Reorder the following parts of a multipolar neuron in the correct order (1–8) of receiving and sending the nerve impulse. Start with the dendrites as number 1. ____ 1. axon ____ 2. axon hillock ____ 3. axon terminal ____ 4. cell body ____ 5. dendrites ____ 6. second neuron or effector ____ 7. synapse ____ 8. trigger zonearrow_forwardLabel : a.axon. b. myelin sheath c. cell body . d. dendritearrow_forwardWhich of the following is true about the conduction of action potentials? a. Thicker axons are faster because there is more surface area on thicker axons. b. Myelin speeds conduction because the glial cells add voltage gated Na+ channels to the neuron. c. Diffusion of Na+ ions between the Nodes of Ranvier happens faster than the wave of opening and closing membrane proteins can travel. d. Neurons that don’t have myelin sheaths undergo saltatory conduction e. Action potentials move slowly.arrow_forward
- Identify the following as properties of electrical synapses (ES), chemical synapses (CS), or both (B). a. _____ The plasma membranes of presynaptic and postsynaptic neurons are joined by gap junctions. b. _____ Transmission is unidirectional and delayed. c. _____ A presynaptic neuron and a postsynaptic neuron are involved. d. _____ The use of neurotransmitters packaged into synaptic vesicles is required. e. _____ Transmission is nearly instantaneous and bidirectionarrow_forwardA. Match the neuroglia cell with the correct function. D. oligodendrocytes A. Astrocytes B. Microglia C. Ependymal E. Schwann cells F. satellite cells 11. Cells that produce the myelin in the PNS. 12. Cells that produce the myelin in the CNS. 13. Phagocytes that dispose of debris such as dead brain cells and bacteria. 14. Anchors and braces neurons with cellular projections. 15. Cells have cilia that help circulate the cerebrospinal fluid. 16. Cells help cushion and protect neurons in the PNS. 17. Cells serve as a medium for diffusion between capillaries and neurons. 18. Cells line cavities of the brain and spinal cord to achieve the followingarrow_forwardMatch the description with the statement that best describes the following regions dendrites A. elongated projection that conducts electrical signals over long distances B. receives input from other neurons axon hillock C. "region of high denisty of voltage-gated channels, known as the trigger zone" ахon D. contains numerous vesicles containing neurotransmitter synaptic knobarrow_forward
- In an experiment you place a neuron and its synaptic contacts into a medium containing no calcium ions. You stimulate the neuron causing an action potential to propagate down the axon into the axon terminal of the neuron. 3.) What is the most likely result of this experimental manipulation? A. Prolong the refractory period of the action potential B. Decrease the time required to move sodium ions out of the axon terminal C. Prevent neurotransmitter from binding to receptors on postsynaptic cells D. Enhance the voltage changes associated with the action potential E. Prevent release of neurotransmitter into the synapsearrow_forwardCharge from depolarization along the axon reaches the axon terminal, but there is a lack of neurotransmitter release. Which of the following would cause this? Group of answer choices A. Lack of Na+ in the synaptic cleft B. Lack of Ca2+ in the synaptic cleft C. Reduced amount of K+ at the axon terminal D. Lack of voltage-gated sodium channels in the axon terminalarrow_forward32) In order for a nerve impulse to be transmitted across a synapse, a neurotransmitter must be released froma. an axon terminal.b. a dendrite.c. a soma.d. an axon hillock. 33) What part of a neuron is responsible for receiving information?a. Axon.b. Node of Ranvier. c. Dendrite.d. Myelin sheath.arrow_forward
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