Nasal Cavity and Pterygopalatine Fossa

Question 1

Which conchae are part of the ethmoid bone and which one is independent?

Answer 1

Ethmoid: Superior and middle

Independent: Inferior

Question 2

What sinus opens into the superior nasal meatus?

Answer 2

Ethmoidal sinus

Question 3

What sinus opens into the middle nasal meatus?

Answer 3

Frontal sinus

Maxillary sinus

Question 4

What structure opens into the inferior nasal meatus?

Answer 4

Nasolacrimal duct

Question 5

What is Kiesselbach’s area?

Answer 5

Capillary bed anastamosis between Maxillary A. and Facial A. branches in the nasal septum

Can cause epistaxis

Question 6

What veins drain the nasal cavity?

Answer 6

Sphenopalatine V

Facial V

Ophthalmic V

Question 7

What is the innervation of the maxillary sinus?

Answer 7

Superior alveolar nerve branches

Question 8

What is the innervation of the Ethmoid sinus?

Answer 8

Nasociliary Ns.

Question 9

What is the innervation of the sphenoid sinus?

Answer 9

Posterior ethmoidal N.

Question 10

What is the innervation of the frontal sinus?

Answer 10

Supraorbital Nerves from CN V1

Question 11

What nervous fibers arise from the superior cervical ganglion?

Answer 11

Postsynaptic sympathetics