(E4) 3 - The Nasal Cavity

Question 1

Function of the nose

Answer 1

Breathing and Olfaction

Question 2

Describe the nose’s respiratory epithelium

Answer 2

Question 3

Describe the Root portion of the nose (including the 3 bones that make it up)

Answer 3

Question 4

Describe the Dorsum and Apex of the nose (including the cartilages that compose it)

Answer 4

Question 5

What 3 arteries supply the external nose?

Answer 5

Question 6

Dorsal Nasal Artery: Origin, Path, and Supplies

Answer 6

Question 7

External Nasal Artery: Origin, Path, and Supplies

Answer 7

Question 8

Septal and Alar Artery Branches: Origin and Supplies

Answer 8

Question 9

Nasal Branch A.: Origin and Supplies

Answer 9

Question 10

Lateral Nasal Artery: Origin and Supplies

Answer 10

Question 11

What is the venous drainage of the external nose?

Answer 11

Facial vein and pterygoid plexus

(related to cavernous sinus)

Question 12

What main two divisions supply the nasal cavity with sensory innervation?

Answer 12

V1 and V2

Question 13

What branches of V1 supply sensory innervation to the nasal cavity?

Answer 13

Question 14

What branch of V2 supplies sensory innervation to the nasal cavity?

Answer 14

Question 15

Nasal Cavity Sensory Innervation: External Nasal (Origin and Supplies)

Answer 15

Question 16

Nasal Cavity Sensory Innervation: Lateral Internal Nasal (Origin and Supplies)

Answer 16

Question 17

Nasal Cavity Sensory Innervation: Infratrochlear N. (V1) (Origin and Supplies)

Answer 17

Question 18

Nasal Cavity Sensory Innervation: Nasal Branch N. (V2) (Origin and Supplies)

Answer 18

Question 19

The nasal cavity is divided into 2 separate chambers by _____

Answer 19

nasal septum

Question 20

What is the piriform aperture? (nasal cavity)

Question 21

What are choanae?

Answer 21

Question 22

Describe the lateral walls in the nasal cavity.

Answer 22

Question 23

What are the bony and cartilaginous parts that make up the nasal septum?

Answer 23

Question 24

Describe the mucosa of the nasal cavity. (epithelium and exception - 2 main types)

Answer 24

Question 25

Describe the respiratory mucosa of the nasal cavity.

Answer 25

inferior 2/3 * Warms and moistens air

Question 26

Describe the olfactory mucosa of the nasal cavity.

Answer 26

superior 1/3 * Contains peripheral organs of smell * Below cribriform plate

Question 27

Nasal Cavity Relations: Superior

Answer 27

- frontal and sphenoid sinusses - anterior cranial fossa and contents

Question 28

Nasal Cavity Relations: Inferior

Answer 28

Hard palate

Question 29

Nasal Cavity Relations: Medial

Answer 29

- nasal septum - other half of nasal cavity

Question 30

Nasal Cavity Relations: Lateral

Answer 30

- maxillary and ethmoidal sinuses - orbit - pterygopalatine fossa

Question 31

Nasal Cavity Boundaries: Anterior

Answer 31

External nose

Question 32

Nasal Cavity Boundaries: Posterior

Answer 32

Choanae

Question 33

Nasal Cavity Boundaries: Superior

Answer 33

- Nasal, frontal, ethmoid, and body of sphenoid bones

Question 34

Nasal Cavity Boundaries: Inferior

Answer 34

- Palatine process - maxilla - Horizontal plate - palatine bones

Question 35

Nasal Cavity Boundaries: Medial Wall

Answer 35

Nasal septum (vomer, perpendicular plate ethmoid bone, septal cartilage)

Question 36

Nasal Cavity Boundaries: Lateral Wall (bracket)

Answer 36

Maxilla, nasal conchae, perpendicular plate palatine, medial pterygoid plate sphenoid, and lacrimal bones

Question 37

What are nasal conchae?

Answer 37

Scroll-like structures on lateral wall *Surface area for heat exchange

Question 38

Describe the 3 nasal conchae (name them and what forms them)

Answer 38

Question 39

What are nasal meatuses?

Answer 39

- Recesses that underlie each nasal concha * Receive drainage from paranasal sinuses and nasolacrimal duct

Question 40

Describe the sphenoethmoidal meatus.

Answer 40

- lies superoposterior to superior concha

Question 41

Describe the superior meatus.

Answer 41

- narrow passage between superior and middle nasal conchae

Question 42

Describe the middle meatus.

Answer 42

- Longer and deeper than superior - Between middle and inferior conchae

Question 43

Describe the inferior meatus.

Answer 43

- Inferolateral to inferior concha - Receives nasolacrimal duct

Question 44

What are the contents of the middle meatus?

Answer 44

- ethmoid bulla - semilunar hiatus

Question 45

What is the ethmoid bulla?

Answer 45

Question 46

What is the semilunar hiatus?

Answer 46

Question 47

Anterior and posterior ethmoidal aa.: Origin and Branches

Answer 47

Question 48

Anterior and posterior ethmoidal aa.: Supplies

Answer 48

Question 49

Sphenopalatine A.: Origin and Branches

Answer 49

Question 50

Sphenopalatine A.: Supplies

Answer 50

Question 51

Greater Palatine A.: Origin and Supplies

Answer 51

Question 52

Superior Labial A.: Origin, Branches, and Supplies

Answer 52

Question 53

What is Kisselbach's Plexus, and what arteries form it?

Answer 53

Question 54

What nerve supplies SVA for olfaction?

Answer 54

CN I - Olfactory N.

Question 55

What nerve supplies GSA for general sensation to the nasal cavity?

Answer 55

Ophthalmic and Maxillary Divisions of CN V

Question 56

Anterior Ethmoidal N.: Origin and Branches

Answer 56

Question 57

Anterior Ethmoidal N.: Supplies

Answer 57

Question 58

Nasopalatine N.: Origin and Supplies

Answer 58

Question 59

Posterior Superior Lateral Nasal N.: Origin and Supplies

Answer 59

Question 60

Nasal Branch (V2): Origin and Supplies

Answer 60

Question 61

Posterior Inferior Lateral Nasal N. (V2): Origin and Supplies

Answer 61

Question 62

What is epitaxias?

Answer 62

Question 63

Causes of Epitaxis

Answer 63

Question 64

Describe Anterior Epitaxis and Treatment

Answer 64

Question 65

Describe treatment for Posterior Epitaxis

Answer 65

Question 66

Describe Deviated Septum - What is it? Causes? Treatment?

Answer 66