Part III. Working Together
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Each individual body system works in conjunction with other body systems. The circulatory system
is a good example of how body systems interact with each other. Your (14) pumps blood through
a complex network of (13). When your(10) circulates through your digestive system, for example,
it picks up (7) your body absorbed from your last meal. Your blood also carries oxygen inhaled
by the (5). Your (6) system delivers oxygen and nutrients to the other (2) of your body then picks
up any (11) products created by these cells, including carbon dioxide, and delivers these to the
kidneys and lungs for disposal.
Each of your body systems relies on the others to work well. Your (9) system relies on your
circulatory system to deliver the (4) it gathers; while the muscles of your heart cannot function
without the oxygen they receive from your lungs. The circulatory system provides your (1) with a
constant supply of oxygen-(15) blood while your brain regulates your (12) and (3) .Working
together, these systems maintain internal stability and balance, otherwise known as (8).
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