Question:easy
Blow out fracture of the orbit involves the:
Blow out fracture of the orbit involves the:
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Thinnest wall over the infraorbital canal gives way first.
Updated On: Jun 24, 2026
- Floor
- Medial wall
- Lateral wall
- Roof
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The Correct Option is A
Solution and Explanation
Step 1: Picture a ball striking the eye - the pressure inside the orbit spikes and snaps the most fragile wall, sparing the strong rim.
Step 2: The floor of the orbit is exactly that weak point. It carries the infraorbital nerve and artery in a canal whose roof is only about $0.23$ mm thick, far thinner than the surrounding bone.
Step 3: The lateral floor is more than five times thicker (around $1.25$ mm), so the crack consistently forms over the thin neurovascular channel.
Step 4: Hence a blowout fracture characteristically breaks the orbital floor.
\[\boxed{\text{Floor}}\]
Step 2: The floor of the orbit is exactly that weak point. It carries the infraorbital nerve and artery in a canal whose roof is only about $0.23$ mm thick, far thinner than the surrounding bone.
Step 3: The lateral floor is more than five times thicker (around $1.25$ mm), so the crack consistently forms over the thin neurovascular channel.
Step 4: Hence a blowout fracture characteristically breaks the orbital floor.
\[\boxed{\text{Floor}}\]
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