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Question
If the blood pressure is too low, the cardiovascular control centre in the medulla oblongata attempts to compensate by causing a/an _______.
Options:
A .  Decreased cardiac output
B .  Increased contractility of the myocardial cells
C .  Systemic arteriolar dilation
D .  Decreased heart rate
Answer: Option B
:
B
If the blood pressure is too low, the cardiovascular control centre in the medulla oblongata attempts to compensate by causing an increased contractility of the myocardial cells.

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