What drives the return of blood to the heart in the systemic veins?
A) Muscles squeezing blood through the veins
B) The lymphatic system
C) Contractions of the left auricle
D) Ciliated cells lining the inside of the veins
Correct Answer:
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Q38: The most abundant cell type in blood
Q39: Ventricles force blood directly into the
A) venules.
B)
Q40: Long- distance runners like to train at
Q41: Hypertension may lead to
A) atherosclerosis.
B) lung cancer.
C)
Q42: Which of the following is smallest in
Q44: Plasma that leaks out of the blood
Q45: Which of the following has the lowest
Q46: Which of these blood cells have no
Q46: The accumulation of carbon dioxide, lactic acid,
Q47: What happens to the speed of blood
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