Which of the following is not secreted by the adrenal medulla in response to sympathetic stimulation?
A. Acetylcholine
B. Epinephrine
C. Norepinephrine
D. Dopamine
E. All of the choices are secreted in response to sympathetic stimulation.
A. Acetylcholine
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Which imaging technique would be the most dangerous for a patient with bridge-work in his mouth, metal screws in his hip, or a pacemaker?
A) ultrasound B) magnetic resonance imaging C) radiography D) position emission tomography
Jerry had an ulcer affecting the innermost epithelium of the stomach facing the lumen. Which layer of the alimentary canal was ulcerated?
A) submucosa B) mucosa C) serosa (adventitia) D) muscularis externa
Some smooth muscle is autorhythmic
Indicate whether the statement is true or false