The respiratory pump assists blood movement within the veins of the trunk, because as a person inspires,
A) intra-abdominal and intrathoracic pressure both increase.
B) intra-abdominal and intrathoracic pressure both decrease.
C) intra-abdominal pressure increases and intrathoracic pressure decreases.
D) intra-abdominal pressure decreases and intrathoracic pressure increases.
Correct Answer:
Verified
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