anatomy of the nose

Question 1

damage to what anatomical structure can cause epistaxis (nosebleed)?

Answer 1

kiesselbach’s plexus

Question 2

what arteries make up kiesselbach’s plexus?

Answer 2

• anterior ethmoidal artery
• posterior ethmoidal artery
• septal branch of superior labial artery
• greater palatine artery
• sphenopalatine artery

both palatine arteries listed are branches of the maxillary artery

ethmoidal arteries are branches of the opthalmic artery

superior labial artery is a branch of the facial artery

Question 3

what type of epithelium is found in the nasal vestibule?

Answer 3

stratified squamous epithelium that moves from keratinised to non-keratinised as you move into the vestibule

Question 4

what types of epithelium are found in the nasal cavity?

Answer 4

respiratory epithelium and olfactory epithelium

Question 5

what vessel causes severe epistaxis following severe facial trauma e.g. road traffic accident

Answer 5

anterior ethmoid

Question 6

what is the largest nasal concha?

Answer 6

inferior