Question

question 79

which of the following is not a subclass of a fibrous joint?

synchondrosis
gomphosis
syndesmosis
suture

Explanation:

Identify the structural classification of joints

Using the Joint Classification knowledge point, joints are structurally classified into fibrous, cartilaginous, and synovial joints based on the material binding the bones together and the presence or absence of a joint cavity.

Analyze fibrous joint subclasses

Using the Fibrous Joints, Suture Joints, Syndesmosis, and Gomphosis Articulation knowledge points

• Sutures are fibrous joints found only between bones of the skull.
• Syndesmoses are fibrous joints connected by ligaments or interosseous membranes (e.g., tibiofibular joint).
• Gomphoses are specialized fibrous peg-in-socket joints (e.g., teeth in alveolar sockets).

Analyze cartilaginous joint subclasses

Using the Synchondroses knowledge point

• Synchondroses are cartilaginous joints where bones are united by hyaline cartilage (e.g., epiphyseal plates, first rib to sternum). Therefore, a synchondrosis is NOT a subclass of a fibrous joint.

Answer:

• (A) synchondrosis (Correct answer)
• (B) gomphosis
• (C) syndesmosis
• (D) suture