Textbook Question
Explain how the structure of each of the following joint types follows its function.
Cartilaginous joint
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8. Joints
Structural Class: Cartilaginous Joints
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Which of the following is an example of a cartilaginous joint?
A
Hinge joint of the elbow
B
Ball and socket joint of the shoulder
C
Suture of the skull
D
Pubic symphysis
Verified step by step guidance1
Understand the types of joints: Joints are classified based on their structure and function. The main types are fibrous, cartilaginous, and synovial joints.
Identify cartilaginous joints: These joints are connected entirely by cartilage, allowing more movement than fibrous joints but less than synovial joints. They include synchondroses and symphyses.
Examine the examples given: The hinge joint of the elbow and the ball and socket joint of the shoulder are synovial joints, characterized by a fluid-filled joint cavity. The suture of the skull is a fibrous joint, which is immovable.
Focus on the pubic symphysis: The pubic symphysis is a cartilaginous joint located between the left and right pubic bones. It is a type of symphysis joint, where the bones are joined by fibrocartilage.
Conclude with the correct identification: Based on the characteristics of cartilaginous joints, the pubic symphysis is the correct example of a cartilaginous joint among the options provided.
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