The optic nerve:
A) transmits the image to the brain. B) is responsible for light refraction.
C) is responsible for color vision. D) none of the above.
A
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Ischemic heart disease is MOST accurately defined as:
A. absent myocardial blood flow due to a blocked coronary artery. B. decreased blood flow to one or more portions of the myocardium. C. death of a portion of the heart muscle due to a decrease in oxygen. D. decreased blood flow to the heart muscle due to coronary dilation.
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The condition in which stimulation of the vagus nerve causes changes in heart rate is known as:
A. vagal tone. B. valvular tone. C. vascular tone. D. ventricular tone.
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