LooseLeaf for Human Anatomy
5th Edition
ISBN: 9781259285271
Author: Michael McKinley Dr., Valerie O'Loughlin, Elizabeth Pennefather-O'Brien
Publisher: McGraw-Hill Education
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Chapter 14, Problem 1MC
Summary Introduction
Introduction:
The neuron is the basic unit of the nervous system. Neuron helps in the conduction of nerve impulse towards and away from the brain.
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The part of a neuron that contains the nucleus is the a. cell body b. dendrite c. axon d. glial
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What cells have the mesenchymal origin?
a. Fibrillar astrocyte
b. Microgliocytes
c. Ependymal cell
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With respect to the cell body of a neuron, which of the following statements is false? a. Aggregates of Golgi apparatus and lysosomes form darkstaining Nissl bodies within it. b. Reflecting its function of protein synthesis, the cell body contains a high density of ribosomes, rough endoplasmic reticulum, and Golgi apparatus. c. Within its cytoplasm are bundles of intermediate filaments that come together to form neurofibrils. d. The cell body has high metabolic demands, and thus has large numbers of mitochondria.
Chapter 14 Solutions
LooseLeaf for Human Anatomy
Ch. 14 - Together, what three functions do the CNS and PNS...Ch. 14 - Compare and contrast the meanings of afferent and...Ch. 14 - How do dendrites and axons differ in terms of...Ch. 14 - Prob. 4WYLCh. 14 - Prob. 5WYLCh. 14 - Prob. 6WYLCh. 14 - Prob. 7WYLCh. 14 - Prob. 8WYLCh. 14 - Prob. 9WYLCh. 14 - Prob. 10WYL
Ch. 14 - Prob. 11WYLCh. 14 - Prob. 12WYLCh. 14 - Prob. 13WYLCh. 14 - How is a diverging circuit different from a...Ch. 14 - Prob. 1MCh. 14 - Prob. 1MCCh. 14 - Neurons that have only two processes attached to...Ch. 14 - Prob. 3MCCh. 14 - Prob. 4MCCh. 14 - Prob. 5MCCh. 14 - Prob. 6MCCh. 14 - a. Neurolemmocyte b. Astrocyte c. Neuron d....Ch. 14 - Which type of neuronal pool uses nerve impulse...Ch. 14 - Prob. 9MCCh. 14 - Prob. 10MCCh. 14 - What are the three structural types of neurons?...Ch. 14 - Prob. 2CRCh. 14 - Prob. 3CRCh. 14 - Prob. 4CRCh. 14 - Prob. 5CRCh. 14 - Describe the arrangement and structure of the...Ch. 14 - Prob. 7CRCh. 14 - What are the differences between electrical and...Ch. 14 - Discuss the similarities and differences between...Ch. 14 - What are the basic developmental events that occur...Ch. 14 - Prob. 1DCRCh. 14 - Prob. 2DCR
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- The tigroid lysis is observed in a case of functional exhaustion of the neuron. It is resulted in decay of basophilic substance and brightening of the neuroplasma. What organelles changes do this phenomenon is associated with? a. Granular endoplasmic reticulum O b. Lysosomes O c. Neurofibrils d. Golgi apparatus O e. Mitochondriaarrow_forwardThe neuron cell is made up of which of the following parts? A. Axon B. Dendrite C. Nucleus D. All of the Abovearrow_forwardIn the adult, neurons are an example of which of the following? A. Continuously dividing cells B. Labile cells C. Permanent cells D. Quiescent cells F. Stable cellsarrow_forward
- Which of the following is not a way neuroglia cells help neurons? A. Provide support and protection B. Speed up electrical signals C. Provide nutrients D. Send electrical signals themselvesarrow_forwardAndrew was taken to the doctor’s office after he was bitten by a stray dog. The concern was that the dog might be infected with the rabies virus. The rabies virus infects neurons by using which method that normally transports materials from the synaptic knob to the cell body? a. anterograde transport b. fast axonal transport c. slow axonal transport d. All of these are correct.arrow_forwardThe membrane of a neuron is composed of __________ with __________ embedded in them. a. proteins; neurotransmitters b. lipids; proteins c. carbohydrates; purines d. benzene molecules; carbohydrates Which cell type sends out axons that become the optic nerve? a. bipolar b. ganglion c. horizontal d. amacrinearrow_forward
- When an action potential arrives in an axon terminal, synaptic vesicles containing acetylcholine are released by: a. facilitated diffusion. b. osmosis. c. exocytosis. d. endocytosis.arrow_forwardSchwann cells are a type of glial cell found in the nervous system. In addition to the conduction of nerve impulses, the outermost layer called neurilemma aids in nerve development and regeneration. After examining the image below, can you explain why brain cells have a. Neurons in the central nervous system lack neurilemma of Schwann cells. b. Neurons in the central nervous system are surrounded by white matter. c. Axons of the peripheral nervous system lack neurilemma of Schwann cells. d. Neurons in the peripheral nervous system are surrounded by grey matter.arrow_forwardWhich of the following best describes the electrical state of a neuron at rest? a. The inside of a neuron is more negatively charged than the outside. b. The outside of a neuron is more negatively charged than the inside. c. The inside and the outside of a neuron have the same electrical charge. d. Potassium ions leak into a neuron at rest.arrow_forward
- Which of the following is a function of microglia?A. Microglia remove dead cells and weak synapses.B. Microglia build myelin sheaths that surround and insulate axons.C. Microglia dilate blood vessels to increase blood supply to active brain areas.D. Microglia synchronize activity for a group of neurons.arrow_forwardWhich of the following statements does NOT correctly describe the repolarization of a neuron? a. The potassium channels are slower to open, allowing the potassium ions to leave after depolarization. b. The potassium ions leave the cell, thereby returning the neuron to its resting potential. c. The neuron becomes more polarized and more negatively charged than its original resting membrane potential. d. The sodium and potassium channels open, allowing the positive ions to move out of the cell.arrow_forwardIn a neuron, which of the following types of transport occur passively through channel proteins? A. Movement of Na+ into the cell B. Movement of Na+ out of the cell C. Movement of K+ into the cell D. Both A & Carrow_forward
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