Define the motions of spin, slide, and roll as they relate to intra-articular joint motions? Which is most common within a joint?
What will be an ideal response?
ANS:
Spin is rotation about a fixed axis. Slide is a pure translatory or linear movement of one surface upon another, and roll would be rolling of one surface upon another (as in a rocking chair). Generally, intra-articular surfaces slide and roll upon one another in an attempt to produce as close to a pure spin as possible. This is rarely, if ever, achieved.
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Elastic collisions between molecules implies that:
I. there is no net energy transfer II. no energy is lost by the collision III. no energy is gained by the collision IV. net energy remains the same A) I B) I and II C) I, II, and III D) I, II, III, and IV
Before you and your crew can evaluate a patient's altered mental status, you first need to determine ________. Family, friends, and caregivers can help describe this.
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