Special Senses: Nose & Paranasal Sinuses Flashcards Preview

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Flashcards in Special Senses: Nose & Paranasal Sinuses Deck (46)
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0
Q

Parts of the Nose: superior angle

A

Root

1
Q

Projects from the face. Vary in size and shape because of differences in nasal cartilage.

A

Nose

2
Q

Parts of the Nose: tip

A

Apex

3
Q

Parts of the Nose: two piriform openings

A

Nares

4
Q

Parts of the Nose: lateral boundaries

A

Alae

5
Q

Parts of the Nose: middle septum which separates two nares

A

Nasal septum

6
Q

Parts of the Nose: with stiff hairs

A

Vestibule

7
Q

Cartilaginous part of the external nose

A

2 lateral cartilage, 2 alar cartilage and 1 septal cartilage

8
Q

Divides the chamber of the nose into two nasal cavities

A

Nasal septum

9
Q

Component of Nasal septum: forms superior part of the nasal septum

A

Perpendicular plate of Ethmoid

10
Q

Nasal septum: thin flat bone

A

Vomer

11
Q

Nasal septum: articulates with bony septum

A

Septal cartilage

12
Q

Open posteriorly into the nasopharynx thru the choanae.

A

Nasal cavities

13
Q

Mucosa lines the nasal cavities except for

A

Vestibule

14
Q

Parts of the nasal mucosa: superior 1/3. Contains organ of smell.

A

Olfactory area

15
Q

Parts of the nasal mucosa: Inferior 2/3. Where air is warmed and moistened before it goes to respiratory tract.

A

Respiratory area

16
Q

Three scroll-shaped elevations. Superior, middle and inferior. Divide the nasal cavity into four passages.

A

Nasal concha

17
Q

Nasal passage: sphenoidal sinus

A

Sphenoethmoidal recess

18
Q

Nasal passage: posterior ethmoidal sinus

A

Superior meatus

19
Q

Nasal passage: anterior/middle ethmoidal sinus, frontal sinus & maxillary sinus.

A

Middle meatus

20
Q

Nasal passage: nasolacrimal duct

A

Inferior meatus

21
Q

Arterial supply of the nose and paranasal sinuses

A

Greater palatine artery, Lateral nasal branches of the facial artery, Ant & Post Ethmoidal artery, Superior labial artery and Sphenopalatine artery “GLASS”

22
Q

Anteriorly situated where all arteries anastomose, where nose bleeding occurs.

A

Kiesselbach’s area

23
Q

Venous drainage of the nose and paranasal sinuses

A

Sphenopalatine, Opthalmic & Facial veins “SOF”

24
Q

Nerve supply of the nasal septum

A

Posterior ethmoidal n, Anterior ethmoidal n, Nasopalatine n & Greater palatine n. “PANG”

25
Q

Nerve for olfaction or smell

A

Olfactory nerve. Olfactory bulb @ forebrain.m

26
Q

Air filled extensions of the respiratory part of the nasal cavity into the frontal, ethmoid, sphenoid & maxillary.

A

Paranasal sinuses

27
Q

Paranasal sinus: between outer and inner tables of frontal bone.

A

Frontal sinus

28
Q

Frontal sinus is detectable by

A

7 y/o

29
Q

Frontal sinus drains thru __________ into the infundibulum w/c opens into ________ hiatus of the ______ hiatus.

A

Frontonasal duct. Semilunar. Middle.

30
Q

Nerve supply of the frontal sinus

A

Branch of the supraorbital nerve

31
Q

Paranasal sinus: comprise several cavities. ________ cells. At ethmoid bone. Three parts: anterior, posterior and middle.

A

Ethmoid sinus. Ethmoid cells.

32
Q

Part of Ethmoid sinus: drain into superior meatus

A

Posterior

33
Q

Part of Ethmoid sinus: drain into middle meatus

A

Anterior

34
Q

Part of Ethmoid sinus: forms ethmoidal bulbs. Drain into this meatus.

A

Middle

35
Q

Nerve supply of the Ethmoidal sinus

A

Nasociliary nerve (CN VI)

36
Q

Paranasal sinus: unevenly divided. Body of sphenoid. Separated by thin plates of bone from optic nerve and chiasma, ICA & Pituitary gland.

A

Sphenoidal sinus

37
Q

Sphenoidal sinus opens into the

A

Sphenoethmoidal recess

38
Q

Nerve supply of the sphenoidal sinus

A

Posterior ethmoidal nerve

39
Q

Paranasal sinus: largest. Pyramidal shaped.

A

Maxillary sinus

40
Q

Parts of Maxillary sinus: apex

A

Into zygomatic bone

41
Q

Parts of Maxillary sinus: base

A

Part of nasal cavity

42
Q

Parts of Maxillary sinus: roof

A

Formed by floor of orbit

43
Q

Parts of Maxillary sinus: floor

A

Formed by the alveolar part of maxilla

44
Q

Maxillary sinus drains via _________ into __________.

A

Maxillary ostium. Middle meatus.

45
Q

Nerve supply of maxillary sinus

A

Superior alveolar nerves