Which bone is NOT part of the orbital floor bones?

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Multiple Choice

Which bone is NOT part of the orbital floor bones?

Explanation:
The floor of the orbit is the inferior wall, formed mainly by the maxilla, with smaller contributions from the palatine bone and the zygomatic bone at the lateral edge. The ethmoid bone, particularly its lamina papyracea, forms the medial wall of the orbit rather than the floor. So among the bones listed, the one that does not belong to the orbital floor is the ethmoid.

The floor of the orbit is the inferior wall, formed mainly by the maxilla, with smaller contributions from the palatine bone and the zygomatic bone at the lateral edge. The ethmoid bone, particularly its lamina papyracea, forms the medial wall of the orbit rather than the floor. So among the bones listed, the one that does not belong to the orbital floor is the ethmoid.

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