The Heart of the Matter

• List the structures of the respiratory tract.
• Describe the processes of inhalation and exhalation in terms of muscle contraction and rib/lung size.
• Where does gas exchange occur in the lungs, and how?
• List two functions of the blood other than carrying oxygen.
• Name the four chambers and four valves of the heart.
• Put the structures of the right side of the heart in order based on how blood moves through them. Write a “1” next to the first structure the blood enters, “2” next to the second, and so on.
  • Lungs____
  • Right ventricle____
  • Right AV valve____
  • Pulmonary arteries____
  • Right atrium____
  • Right semilunar valve____
• In “On the Move” we learned that cardiac muscle tissue is involuntary. What does that mean?
• Define the following and describe their structure and function:

a.Arteries:

b.Capillaries:

c.Veins: