HUMAN ANAT+CNCT+POLLEV LBCC >IC<
HUMAN ANAT+CNCT+POLLEV LBCC >IC<
14th Edition
ISBN: 9781259349461
Author: McKinley
Publisher: MCG CUSTOM
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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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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.
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. Mitochondria
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.
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