Agents that reduce coughing are known as:

For a lateral knee projection,

1. an imaginary line connecting the femoral epicondyles is aligned parallel with the IR. 2. a patient with long femora and a narrow pelvis does not require an angled central ray. 3. a grid is used if the knee measures over 10 cm. 4. the central ray is centered 1 inch (2.5 cm) distal to the medial femoral epicondyles. a. 1 and 2 only b. 2 and 4 only c. 2, 3, and 4 only d. 1, 2, 3, and 4

Resistance to the flow of energy is termed ____________________

Fill in the blank(s) with correct word