【单选题】Blockage of blood flow in the proximal part of the anterior interventricular artery could deprive a large area of heart tissue of blood supply, unless a substantial retrograde flow into this artery de...
C.
Posterior interventricular
【简答题】In STEMI,blood flow to the heart is stopped because of a blockage in a coronary arter- y. Unlike other kinds of heart attacks, STEMIs show up very clearly on an electrocardiogram, or ECG(心电图). Doctors...
【单选题】Which of the following statements regarding nitroglycerine is incorrect?
A.
Nitroglycerine can cause adverse reactions of headache and tachycardia.
B.
Nitroglycerine undergoes significant first-pass biotransformation.
C.
Nitroglycerine is used for congestive heart failure intravenously.
D.
Nitroglycerine increases total coronary blood flow.
E.
If continuous intravenous infusions of nitroglycerine are used for more than a few hours without interruption, tolerance may develop.
【单选题】The physiological significance of baroreceptive reflex is
B.
Increase coronary blood flow
C.
Reduce mean arterial pressure
D.
Stable and fast fluctuating blood pressure