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Epistaxis

Question
14 out of 24
 

Source of epistaxis after ligation of external carotid artery is: (DNB Dec 2012)



A Maxillaryartery
B Greater palatine artery

C Superior labial artery
D Ethmoidal artery

Ans. D Ethmoidal artery Ref. Dhingra 5th/ed p 189, 6th/ed p 178;

Nose is Supplied by

Internal carotid artery

External carotid artery

Anterior ethmoidal artery

Posterior ethmoidal artery

Facial Artery

• Superior labial artery

Maxillary artery

Greater palatine artery

Branches of sphenopalatine artery (nasopalatine, post nasal septal branches and posterior lateral nasal

branches

Anterior superior dental artery

In the Question

Greater palatine artery

Superior labial artery

Maxillary artery

Are all branches of external carotid artery.

If external carotid artery is ligated, the source of epistaxis will be ethmoidal artery which is a branch of Internal carotid artery.

Epistaxis Flashcard List

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