Nasal Cavity (week 2)

Question 1

Inferior Meatus has an opening to what space?

Answer 1

Nasolacrimal Duct

Question 2

Superior Meatus has an opening to what space?

Answer 2

Posterior Ethmoid Air Cells

Question 3

Middle Meatus has an opening to what spaces?

Answer 3

Frontal Sinus, Maxillary Sinus, Anterior Ethmoid Air Cells

Question 4

What is the Ethmoid Bulla?

Answer 4

A bulge created by the Ethmoid Air cells

Question 5

What are the 2 main sources for arteries to the nasal cavity?

Answer 5

Maxillary and Anterior & Posterior Ethmoid arteries

Question 6

What are the two main arterial branches off of the Maxillary artery that supplies blood to the nasal cavity

Answer 6

Sphenopalatine and Greater Palatine artery

Question 7

What is the pathway of the Maxillary Artery to provide blood to the nasal cavity?

Answer 7

Infratemporal Fossa –> Pterygopalatine Fossa –> Sphenopalatine Foramen

Question 8

Does the facial artery send branches to septum?

Answer 8

Yes. It sends some branches from the superior labial artery to the septum. However, this is not considered one of the major sources.

Question 9

What branches off of the Sphenopalatine artery as it runs along the septum?

Answer 9

Lateral Posterior nasal branches

Question 10

What branch of the Internal Carotid artery supplies blood to the nasal cavity?

Answer 10

Opthalmic –> Anterior and Posterior ethmoidal arteries

Question 11

What cranial nerve gives General Sensory to the nasal cavity?

Answer 11

Trigeminal - V1 and V2

Question 12

The nasopalatine nerve is a branch of what cranial nerve?

Answer 12

Cranial Nerve V-V2

Question 13

The Anterior Ethmoidal Nerve is a branch off of what cranial nerve?

Answer 13

CN V-V1. Also a branch off of Nasocilliary nerve

Question 14

What nerve sends branches to Posterior and Inferior Septum then continues to Incisive Canal?

Answer 14

Nasopalatine Nerve

Question 15

Posterior Lateral Nasal nerve is a branch off of what Cranial Nerve?

Answer 15

CN V-V2.

Question 16

What nerve sends internal nasal branches to anterior and superior septum and lateral walls?

Answer 16

Anterior Ethmoidal Nerve

Question 17

What are the three specific nerve branches that supply general sensory to the nasal cavity?

Answer 17

Anterior Ethmoidal Nerve, Nasopalatine nerve and Posterior Lateral Nasal nerve

Question 18

The Anterior Ethmoidal nerve is a branch off of what specific branch of the V1 nerve?

Answer 18

Nasocilliary nerve

Question 19

What nucleus are the Preganglionic cell bodies of CN VII housed in before they supply parasympathetic innervation to the Smooth Muscle and Glands of Nose?

Answer 19

Superior Salivatory Nucleus

Question 20

What cranial nerve supplies Parasympathetic innervation to the smooth muscle and glands of nose?

Answer 20

CN VII

Question 21

Pre-ganglionic parasympathetic fibers synapse with Post-ganglionic fibers in what ganglion that ends up going to nasal cavity?

Answer 21

Pterygopalatine ganglion

Question 22

What sympathetic ganglion do sympathetic fibers that end up in the nasal cavity synapse in?

Answer 22

Superior Cervical Ganglia

Question 23

What are the four paranasal sinuses?

Answer 23

Frontal, Sphenoidal, Ethmoidal and Maxillary

Question 24

Spenoethmoidal recess has an opening to what sinus?

Answer 24

Sphenoid sinus