KROK 1 2009 – Question 154 · KROK (Medicine) · Physiology
In response to a change in body position from horizontal to vertical blood circulation system develops reflectory pressor reaction. Which of the following is its compulsory component?
- A. Systemic dilatation of the arterial resistive vessels
- B. Decrease in the circulating blood volume
- C. Increase in the heart rate
- D. Systemic constriction of the venous vessels
- E. Weakening of the pumping ability of heart
Hint
Think about where gravity pools blood after standing up, and which change is indispensable for restoring cardiac filling rather than just helpful.
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