Textbook Question
Joints typically located between the ends of adjacent long bones are
(a) Synarthroses
(b) Amphiarthroses
(c) Diarthroses
(d) Symphyses
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8. Joints
Classification of Joints
Multiple Choice
Why are there NO blood vessels inside the joint cavity of synovial joints?
A
Movement would damage the delicate blood vessels.
B
Hyaluronic acid would react with blood.
C
Blood would prevent production of articular cartilage.
D
Blood would pool and limit the movement of the joint.
Verified step by step guidance1
Understand the structure of synovial joints: Synovial joints are characterized by a joint cavity filled with synovial fluid, which allows for smooth movement between the articulating bones.
Consider the role of synovial fluid: Synovial fluid, which contains hyaluronic acid, acts as a lubricant and shock absorber, facilitating movement and reducing friction within the joint.
Analyze the impact of blood vessels in the joint cavity: If blood vessels were present, the movement of the joint could damage these delicate structures, leading to bleeding and inflammation.
Evaluate the chemical interaction: Hyaluronic acid in the synovial fluid could potentially react with blood, altering the composition and function of the synovial fluid.
Consider the mechanical implications: The presence of blood in the joint cavity could lead to pooling, which would restrict the movement of the joint and impair its function.
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