Illinois CNA State Practice Exam

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What does "extension" mean?

Turning the joint outward
Touching an opposite finger with the thumb
Straightening a body part
Turning the joint inward

The correct answer is: Turning the joint outward

"Extension" in this context refers to turning a joint outward from its normal position. This is the opposite of "flexion" which refers to bringing a joint in towards the body or reducing its angle. Option B, touching an opposite finger with the thumb, is commonly known as "opposition" and is a different concept than extension. Option C, straightening a body part, is closer in meaning to "extending" a limb or joint, but does not fully encompass the concept of "extension." Option D, turning the joint inward, is again the opposite of "extension."