Download Science Chapter 5 Study Sheet

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Science Chapter 5 Study Sheet
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The system that moves blood through the human body is the circulatory system. The respiratory system
involves our lungs, esophagus, bronchial tubes, and diaphragm. Major organs of the nervous system are
the brain and the spinal cord. The nervous system is responsible for the control of how you react to
information.
When you hold your breath, hour brain sends a message to the diaphragm and rib muscles telling them
to breathe. This message is sent to the brain when carbon dioxide builds up in the blood.
Skeletal muscles work together as opposites. When one contracts, the other relaxes. Think of your
biceps and triceps, which are opposite pairs.
The pancreas and liver send chemicals to the small intestine to help digest food. Food moves through
the esophagus when rings of muscles squeeze food down the esophagus.
The muscular system works with the digestive system to move food through the stomach and intestines.
It works with the skeletal system to help the body move. How do other systems work together?
If the respiratory system does not function properly, then the circulatory system cannot transport
enough oxygen to the body. Without enough oxygen, other organs and tissues of the body will not
function properly.
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