The serratus anterior is innervated by which nerve?
A. Long thoracic
B. Lateral pectoral
C. Dorsal scapular
D. Accessory
E. Axillary
Answer: A
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The innermost layer of the muscularis is smooth muscle that ________.
A. lies in the direction of the canal B. encircles the canal C. surrounds only the stomach D. keeps the outer surface of the intestines moist
Which sympathetic fibers form the splanchnic nerve?
A) those that synapse with parasympathetic fibers B) those that synapse in the same trunk ganglion they entered C) those that synapse with somatic fibers D) those that pass through the trunk ganglion to synapse in collateral or prevertebral ganglia
Which of the following does not describe actions of interferon (IFN)?
A) IFN binds to normal, uninfected cells stimulating the activation of genes that produce anti-viral proteins. B) IFN can penetrate the viral capsid and destroy the virus. C) Virally infected cells can release interferon which attracts NK cells to attack and kill the IFN secreting cell. D) IFN will attract macrophages to the secreting cell to be removed by phagocytosis.
The layers of the alimentary canal, from outside to inside, are the ________.
A. mucosa, muscular, submucosa, and serosa B. serosa, muscular, submucosa and mucosa C. mucosa, submucosa, muscular and serosa D. serosa, muscular, mucosa and submucosa