Question

module 6 assignment 6: joints
identify the types of structural and functional joints numbered (1, 2, 3) in these illustrations by categorizing the labels to the correct location. (some labels will be used more than once.)
suture
fibrous
cartilaginous
symphysis
synarthrosis
amphiarthrosis
classifications
structural 1 functional 1 structural 2 functional 2 structural 3 functional 3

Explanation:

• Joint 1: The joint between skull bones (like the one labeled 1) is a suture (structural type). Sutures are fibrous joints (structural category). Functionally, they are synarthroses (immovable joints).
• Joint 2: The pubic symphysis (labeled 2) is a cartilaginous joint (structural type). Specifically, it is a symphysis (a type of cartilaginous joint). Functionally, it is an amphiarthrosis (slightly movable joint).
• Joint 3: The inter - vertebral joint (labeled 3) is a cartilaginous joint (structural type). It is also a symphysis (as it has a fibrocartilaginous disc). Functionally, it is an amphiarthrosis.

Answer:

• Structural 1: Fibrous, Suture
• Functional 1: Synarthrosis
• Structural 2: Cartilaginous, Symphysis
• Functional 2: Amphiarthrosis
• Structural 3: Cartilaginous, Symphysis
• Functional 3: Amphiarthrosis