Which of the Following Tissues Represent the Four Distinct Densities

question 6

Multiple Choice

Which of the following tissues represent the four distinct densities recognized in the x-ray (from higher to lower density) ?

• A) Bone, water, air, fat
• B) Fat, bone, water, air
• C) Bone, water, fat, air
• D) Air, fat, water, bone

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Definitions:

Rotor

Any of a number of different components that rotate. In air brakes, the rotor turns with the wheel and has braking force applied to it, whereas in an alternator, the rotor provides the magnetic fields required to create current flow.

Cam Ring

An eccentric liner, usually stationary, within which mobile pump members rotate.

Non-Positive

Describes a connection or interaction where movement or slip is permitted between components, as opposed to a fixed, rigid connection.

Vane Pump

A fluid pump consisting of a slotted rotor that turns within a pump liner or cam ring. The rotor is milled with radial slots in which vanes (blades/plates) float, being thrust out by centrifugal force into the liner to form pump chambers when the rotor turns.