____________________ refers to the body's ability to resist or eliminate potentially harmful foreign materials or abnormal cells
Fill in the blank(s) with correct word
Immunity
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The typical source of dietary iodine is iodized ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following statements is false or incorrect?
A) Cardiac muscle contracts when stimulated by its own autorhythmic muscle cells. B) Under normal resting conditions, cardiac muscle tissue contracts and relaxes about 75 times per minute. C) Cardiac muscle fibers depend mostly on anaerobic cellular respiration to generate ATP. D) Cardiac muscle fibers can use lactic acid to make ATP.
Match the vessel with the appropriate description.A. Supplies blood to the frontal lobes of the brainB. A circle of arteries at the base of the brainC. Supplies large portions of the lateral cerebral cortexD. Supplies the posterior portion of the cerebrumE. Formed by the bifurcation of the abdominal aortaAnterior cerebral artery
Fill in the blank(s) with the appropriate word(s).
Phenylephrine functions as a/an ________ because it promotes ________ in nasal mucosa.
A. a1 antagonist; vasoconstriction B. b1 antagonist; vasodilation C. b1 agonist; vasodilation D. a1 agonist; vasoconstriction