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Flashcards in FINALS: Nose Deck (37):
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Nose is made up of

External nose
Nasal cavity

1

The external nose is attached to the forehead by

Nasal bridge or root

2

External nose is bounded by the _____ medially

Nasal septum

3

External nose is bounded by _____ laterally

Ala

4

Superior portion of the external framework of nose

Nasal bone
Frontal process of maxilla
Nasal part of frontal bone

5

Inferior portion of the external framework of nose

Plates or hyaline cartilages
Septal cartilage
Upper nasal cartilage
Lower nasal cartilage

6

Nasal cavity
Infront:
Behind:

Infront of nostrils
Behind choanae

7

Divides the nasal cavity into right and left halves

Nasal septum

8

Each half of the nasal cavity consists of

Floor
Roof
Lateral wall
Medial wall

9

Floor is formed by : 2

Palatine process of maxilla
Horizontal plate of palatine bone

10

Roof formed by : 4

Body of sphenoid
Nasal bone and nasal cartilages
Cribriform plate of ethmoid bone
Frontal bone

11

Located on the roof of the nasal cavity
Contains olfactory bulb and nerve to provide sense of smell

Olfactory membrane

12

Projections on the lateral wall : 3

Superior middle inferior conchae

13

Spaces below each conchae

Meatus

14

Superior to the superior concha
Receives: sphenoidal sinus

Sphenoethmoidal recess

15

Inf to sup conchae
Receives: posterior ethmoidal sinus

Superior meatus

16

Inf to middle conchae

Middle meatus

17

A curved cleft below the Bulla
Leads to: maxillary sinus

Hiatus semilunaris

18

Funnel shaped channel
Receives: frontal and ant ethmoidal sinus

Infundibulum

19

Openings in the middle meatus

Hiatus semilunaris
Infundibulum

20

Openngs in the middle meatus leads to what sinuses 3

Frontal
Ant ethmoidal
Maxillary

21

Inf to inf conchae
Receives: opening of nasolacrimal

Inferior meatus

22

An osteocartilaginous partition

Medial wall or nasal septum

23

Medial wall is composed of : 3

Sup: vertical plate of ethmoid
Post: vomer
Ant: septal cartilage

24

Lines the nasal cavity

Mucous membrane

25

2 types of mucous membrane

Olfactory
Respiratory

26

Parts lined with olfactory m. Memb

Upper surface of superior concha
Sphenoethmoidal recess
Nasal septum
Roof

27

Function of olfactory m memb

Reception of olfactory stimuli

28

Lines lower part of nasal cavity
Warm, moisten and clean the inspired area

Respiratory mucous memb

29

Major nerve supply of nasal cavity 3

Olfactory nerve
Ophthalmic and max branch of trigeminal nerve
Anterior ethmoidal nerve

30

Ascend through the cribriform plate to reach the olfactory bulbs

Olfactory nerve

31

Nerve supply for ordinary sensation

Ophthalmic and max branch

32

Nerve supply to the anterior part of nasal cavity

Ant ethmoidal nerve

33

Nerve supply to the posterior part of nasal cavity

Nasal, nasopalatine, palatine branches of the pterygopalatine ganglion

34

Blood supply of nasal cavity

Branches of maxillary artery

35

Common site of blleding from the nose or epistaxis

Sphenopalatine artery

36

Lymph drainage of nasal cavity

Submandibular nodes
Upper deep cervical nodes