A patient moves the shoulder through a wide range of motion. Which feature allows this type of joint movement?
Correct answer: B. A synovial cavity containing lubricating fluid
- A. A fibrous connection with no joint cavity
- B. A synovial cavity containing lubricating fluid
- C. A solid cartilage bridge between bones
- D. A fixed connection formed by bone fusion
Explanation
The shoulder is a synovial joint, with a joint cavity and synovial fluid that reduce friction and permit extensive movement. Fibrous, cartilaginous, and fused joints allow less movement.
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About Skeletal and Muscular Systems
The skeletal and muscular systems include bone structure, joints, cartilage, the axial and appendicular skeleton, and the roles of ligaments and tendons. They also cover skeletal muscle organization, the sliding filament mechanism, neuromuscular contraction, and common differences between voluntary skeletal muscle, cardiac muscle and smooth muscle.
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