Carbon dioxide diffuses into the alveolus, and oxygen diffuses the other way into the capillaries and binds with the red blood cells. The oxygenated blood returns to the heart to be pumped to the rest of the body
What is the process of gas exchange?
500
_____________: a disorder that occurs when a person severely restricts what she or he eats.
___________: a disorder that occurs when a person eats large amounts of food and then vomits or takes laxatives to get rid of the food before it can be completely digested.
What is Anorexia and Bulimia nervosa.
500
Of the two blood carrying tubes, this has much thicker walls than the other.
What are arteries?
500
Lived from 384 to 322 B.C.E., was a great philosopher. He also closely observed natural objects and events. He dissected animals to compare their body systems, a form of scientific inquiry that became known as comparative anatomy. Historians believe he made such studies to develop hypotheses about how human body systems might work.