Why do capillary beds have such low pressure?
A. The don’t, they have very high blood pressure to force the diffusion of oxygen and nutrients into cells.
B. Fluid loss from arteries is high enought that pressure drops by the time blood reaches capillaries.
C. The total cross-section diameter of the arterial circulation increases with progression from the artery to arteriole to capillary,leading to reduced blood pressure.
Select your answer:
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Medicine on the Western Front Physical and Sensory Impairment Disease and Immunity Microbes Cell Bio World Health Day Skin and Derivatives Special Senses Bacterial Resistance and Biotechnology Medication Administration Brain/Neuron Anatomy Protozoan Diseases Bones Anatomy Muscular Transport system in Living Things (Human)Other quiz:
Nutrition › ViewHow does food provide energy?
A. Food contains oxygen which cells change into energy.
B. Food contains fiber which breaks down into energy.
C. Food contains water which is used to store energy.
D. Food contains sugar which is converted into energy through cellular respiration.
Uses of Radioactive Radiation › View
Suggest way that a scientist can protect themselves against exposure when handling radioactive sources.
A. Storing sources in a lead–lined box using tongs
B. Goggles and gloves
C. Tie hair back