The circulatory system assists the functioning of the digestive system by
a) transporting bile to the duodenum.
b) hydrochloric acid to the stomach.
c) hormones to the digestive system.
d) enzymes to the digestive system.
In a healthy person, which substance is normally present in blood but absent in lymph?
a)White blood cells.
b) Plasma proteins.
c)Inorganic ions.
d) Red blood cells.
If impulse conduction within the heart is rapid and irregular, the result may be high-frequency unco-ordinated muscle contractions (fibrillation). The most probable effect of fibrillation is that the
a) blood leaving the heart will be under higher than normal pressure.
b) blood will clot more readily, thereby causing strokes.
c)atria or ventricles will fail to pump sufficient amounts of blood.
d) atria or ventricles will pump sufficient amounts of blood to the body but not to the heart muscle.
A blood pressure reading of 80/50 mm of mercury would be a
a)symptom of anger.
b) hemorrhage.
c) extremely strenuous exercise.
d) narrowing of the arteries.
A fluid bathes every cell in the body and provides a medium of exchange between the cells and blood capillaries. All of the following are correct terms for this fluid except
a) lymph.
b)interstitial fluid.
c) extracellular fluid (ECF).
d) plasma.
a) transporting bile to the duodenum.
b) hydrochloric acid to the stomach.
c) hormones to the digestive system.
d) enzymes to the digestive system.
In a healthy person, which substance is normally present in blood but absent in lymph?
a)White blood cells.
b) Plasma proteins.
c)Inorganic ions.
d) Red blood cells.
If impulse conduction within the heart is rapid and irregular, the result may be high-frequency unco-ordinated muscle contractions (fibrillation). The most probable effect of fibrillation is that the
a) blood leaving the heart will be under higher than normal pressure.
b) blood will clot more readily, thereby causing strokes.
c)atria or ventricles will fail to pump sufficient amounts of blood.
d) atria or ventricles will pump sufficient amounts of blood to the body but not to the heart muscle.
A blood pressure reading of 80/50 mm of mercury would be a
a)symptom of anger.
b) hemorrhage.
c) extremely strenuous exercise.
d) narrowing of the arteries.
A fluid bathes every cell in the body and provides a medium of exchange between the cells and blood capillaries. All of the following are correct terms for this fluid except
a) lymph.
b)interstitial fluid.
c) extracellular fluid (ECF).
d) plasma.