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1342 Physiology

As a pa of space-research program , a physiologist was asked to investigate the effect of flight-induced stress on blood pressure. Accordingly, the blood pressure of the cosmonauts were to be measured twice: once before the take-off and once after the spacecraft entered the designated orbit around the eah. For a proper comparison, the preflight blood pressure should be recorded in which position?

AThe sitting position
BThe standing position
CThe lying down position
DAny position, as long as the post-flight recording is made in the same position
Physiology
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1348 Physiology

Co, causes?

ADecrease respiratory drive
BReduces cerebral blood flow
CDepresses vasomotor centre
DRespiratory stimulation by central chemoreceptors
Physiology
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