Cardiovascular
What is the aorta
this carries oxygen and nutrients to body tissues and carries carbon dioxide and wastes from body tissues
What is blood
This is the difference between the function of the atria and ventricles in the heart
Atria receive blood, ventricles pump it out
Why are valves essential to heart function?
To prevent backward blood flow
Heart attacks, strokes, atherosclerosis, and hypertension are problems of which system?
What is cardiovascular
The contraction of the diaphragm and rib muscles and expansion of the chest cavity are part of which process?
What is inhalation/respiration