Multiple Choice
Which bones articulate with the humerus?
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8. Joints
Introduction to Joints
Multiple Choice
Why does the hip joint have less freedom of movement than the shoulder joint?
A
The hip joint is surrounded by stronger ligaments and deeper socket compared to the shoulder joint.
B
The hip joint is primarily responsible for weight-bearing, limiting its range of motion.
C
The shoulder joint has more synovial fluid, allowing greater movement.
D
The hip joint is a ball-and-socket joint, while the shoulder joint is a hinge joint.
Verified step by step guidance1
Understand the types of joints involved: Both the hip and shoulder joints are ball-and-socket joints, not hinge joints. This allows movement in multiple directions.
Consider the anatomical structure: The hip joint has a deeper socket (acetabulum) compared to the shoulder joint (glenoid cavity), which provides more stability but less range of motion.
Examine the role of ligaments: The hip joint is surrounded by stronger ligaments that provide stability for weight-bearing activities, limiting its freedom of movement.
Evaluate the function of the joints: The hip joint is primarily responsible for supporting the body's weight, which necessitates stability over flexibility. The shoulder joint, however, is designed for a wider range of motion to facilitate arm movement.
Assess the presence of synovial fluid: Both joints contain synovial fluid to reduce friction, but the shoulder joint's design allows for greater movement due to its shallower socket and less restrictive ligaments.
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