ACSM Personal Trainer

Category - Initial Client Consultation and Assessment

What unique type of joint is the thumb?
  1. Cartilaginous
  2. Synovial
  3. Immovable
  4. Fibrous
Explanation
Answer: C - The thumb is the only example of a saddle joint. Its movements include flexion, extension, abduction, adduction, circumduction, and opposition.
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