Why Is It Important That Blood Pressure Be Low in the Capillary

question 31

Multiple Choice

Why is it important that blood pressure be low in the capillary beds?

• A) Capillaries are thin and fragile, and there needs to be time for diffusion to occur so the blood can't move too fast.
• B) There are so many capillaries, if the blood were moving too fast, it would move right past many of them.
• C) It takes a little while for hemoglobin to "let go" of the oxygen, so the blood can't be moving too fast.
• D) The venules and veins past the capillaries cannot handle too much pressure.
• E) Capillaries cannot hold much blood, so it has to be going slowly to "fit" into the narrow tubes.

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Definitions:

Capacitance Unit

The unit of measurement for capacitance, the farad (F), indicating the ability of a system to store an electric charge.

Farad

The unit of capacitance in the International System of Units (SI), symbolized as F, indicating the capacity of a capacitor to store charge per unit voltage.

Leakage Current

The amount of current that flows through the dielectric separating the plates of a capacitor.

Dielectric Material

A non-conductive substance that is used to store electric charge, typically between the plates of a capacitor.