A frangible bulb heat detector is activated when:
A. a beam of light is reflected onto a photoelectric cell to complete a circuit.
B. ionized molecules make air less conductive, causing a decrease in current.
C. a chemical pellet melts, releasing a pressurized plunger to complete a circuit.
D. a small glass vial breaks when heated, allowing electrical contacts to complete a circuit.
D
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A tangential supraspinatus outlet projection (Neer method) with accurate positioning is obtained when
1. the arm is abducted and the midcoronal plane is at a 60-degree angle with the IR. 2. a 10- to 15-degree caudal central ray angulation is used. 3. the central ray is centered to the superior aspect of the humeral head. 4. the midcoronal plane is vertical. a. 1 and 2 only b. 1 and 3 only c. 2, 3, and 4 only d. 1, 2, 3, and 4
Nasopalatine artery is a branch of the __________________________ section.
Fill in the blank(s) with the appropriate word(s).