Tarnish

question 22

Multiple Choice

Tarnish:

• A) is a surface phenomenon.
• B) is the result of chemical reactions that penetrate into the body of the amalgam.
• C) is equivalent to corrosion.
• D) eventually leads to failure of the restoration.

---

Definitions:

Inferior Vena Cava

In humans, a very large vein that delivers blood from the lower part of the body to the right atrium. Compare with superior vena cava.

Right Common Iliac Artery

A major blood vessel that bifurcates from the abdominal aorta, supplying blood to the right lower limb and pelvic organs.

Blood Clotting

A biological mechanism wherein blood cells and fibrin strands form a clot to stop bleeding and begin repair of the damaged vessel.

Cardiac Output

The volume of blood the heart pumps through the circulatory system in a minute.