At what level do the nerves that innervate the diaphragm exit the spine?
a. C1-3
b. C3-5
c. C6-7
d. T1-3
ANS: B
The diaphragm receives its innervation from nerve roots exiting the spinal cord at levels C3-5.
Health Professions
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a. Plasma cells b. Macrophages c. Fibroblasts d. Fibroclasts
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Section I of the OGCR refers to:
a. conventions, general coding, and chapter-specific guidelines. b. selection of primary diagnosis for non-outpatient settings. c. reporting of additional diagnoses for non-outpatient settings. d. diagnostic reporting and coding guidelines for outpatient services.
Health Professions