Question

the bones of the skull would be classified functionally as:
synovial
lumbar
diarthrosis
synarthrosis

Explanation:

To solve this, we analyze each option:

• Synovial: A type of joint structure (e.g., knees), not a functional classification for skull bones.
• Lumbar: Refers to lower back vertebrae, irrelevant to skull joint classification.
• Diarthrosis: Freely movable joints (e.g., synovial joints), but skull joints are immovable.
• Synarthrosis: Immovable or nearly immovable joints, which matches skull bones (e.g., sutures between cranial bones).

Answer:

D. Synarthrosis