The journey of blood starts in the heart, where it is pumped to the lungs to pick up oxygen, then returns to the heart and is pumped to the rest of the body before returning to the heart to start the cycle again.
Key Concepts to Remember
Cardiac Cycle: The sequence of events that occurs during one heartbeat, including systole (contraction) and diastole (relaxation).
Identify and analyze forces responsible for changes in rotational motion and develop an understanding of the effect of rotational inertia on the motion of a rotating object (e.g., merry-go-round, spinning toy, spinning figure skater, stellar collapse [supernova], rapidly spinning pulsar).