What type of skin lesion is solid, greater than 0.5 cm in diameter, and lacks any deep component?

The valve that is located between the right atrium and the right ventricle is the:

A) aortic valve B) mitral valve C) bicuspid valve D) tricuspid valve

The diaphragms of a diaphragm type of valve are made of: 1. steel. 2. copper. 3. aluminum. 4. chrome-molybdenum

a. 2 c. 3 and 4 b. 2 and 3 d. 1 and 2