28-year old male while playing was hit on the head by a cricket ball . This hit fractures the orbit and damage the optic canal. Which of the following structures are most likely to be damaged during this hit are –
Correct Answer: Optic nerve and ophthalmic aery
Description: Floor of Anterior Cranial Fossa is formed by :- 1)Cribriform plate of ethmoid bone 2)Frontal bone 3)Lesser wing of sphenoid Frontal bone and lesser wing of sphenoid contribute in forming roof of orbit Lesser wing of sphenoid contains optic canal for passage of ophthalamic aery and optic nerve (2nd CN) Ophthalmic aery is a branch of internal carotid aery (associated with sympathetic fibers) Ant view Post view
Category:
Ophthalmology
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