Beta-blockers (beta-adrenergic blocking agents) are frequently used to
A. cause vasoconstriction.
B. block muscarinic receptors.
C. dilate the pupils of the eye.
D. prevent increases in heart rate.
E. prevent decreases in heart rate.
D
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Which of the following are involved directly in pulmonary circulation?
A) superior vena cava, right atrium, and left ventricle B) right ventricle, pulmonary artery, and left atrium C) left ventricle, aorta, and inferior vena cava D) right atrium, aorta, and left ventricle
A blood pH of 7.2 inhibits the respiratory center in the brainstem and decreases CO2
level. Indicate whether the statement is true or false
The lateral fibula serves as the attachment for knee joint structures but ____ articulate with the femur or patella.
Fill in the blank(s) with the appropriate word(s).
Human blood has a pH of 7.4; therefore, it can be classified as a ________.
A. strong base B. weak base C. weak acid D. strong acid E. neutral solution