A Pulley System Can

question 4

Multiple Choice

A pulley system can

• A)change the direction of a force.
• B)multiply a force.
• C)both of these
• D)none of the above

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Definitions:

Cardiac Cycle

The sequence of events in the heart from the beginning of one heartbeat to the beginning of the next, including systole (contraction) and diastole (relaxation).

Ventricles

Lower chambers of the heart that receive blood from the atria and pump it to the lungs and the rest of the body.

Great Arteries

Major arteries that carry blood away from the heart to various parts of the body, notably the aorta and the pulmonary arteries.

Atria

The heart's two top chambers that take in blood from the veins and move it to the ventricles.