Anatomy and Physiology Quiz 1

1. Which of these terms specifically refers to the hardening of arteries through the formation of plaques?

2. A pacemaker is a small electrical device inserted into the chest, which sends a repetitive signal to the sinoatrial node. Why would this be necessary?

3. Phantom pain is a phenomenon in which someone loses a limb to an accident or amputation, but can still feel pain in the limb after it is gone. To treat this condition, doctors sometimes stimulate nerves in other parts of the body, such as nerves in the face when someone suffers phantom pain in their arm. Why does this stop the pain from the phantom limb?

4. Which of these statements about T-cell maturation is true?

5. What can high levels of blood urea nitrogen indicate?

6. Which of these pathogen:disease pairs is correct?

7. Why must the atria and ventricles contract at different times?