The most important factor in vascular resistance is friction between blood flow and the:

A) blood's density. B) vessel walls.
C) amount of red blood cells. D) amount of plasma in the blood.

B

Health Professions

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The five-volume book De Materia Medica contained information on more than 600 plants and minerals. It was written by:

A) Mithridates. B) Hippocrates. C) Galen. D) Dioscorides.

Health Professions

Functions of the prehospital care report include:

A) continuity of care. B) education. C) research. D) all of the above.

Health Professions