For firefighter protection during overhaul operations, what system should be in continuous use until the incident is terminated?

For a lateral cranial projection, the

1. midsagittal plane is positioned parallel with the IR. 2. IPL is positioned parallel with the IR. 3. IOML is perpendicular to the front edge of the IR. 4. central ray is centered 2 inches (5 cm) anterior to the EAM. a. 1 and 3 only b. 1 and 4 only c. 2 and 3 only d. 1, 3, and 4 only

What is the function of the tunica media?

A. Allow medications to pass through B. Dilate and constrict to maintain homeostasis C. Come in direct contact with the blood D. Keep the vessel open