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H&N Anatomy Quiz 2 > Regions & Cavities II > Flashcards

Regions & Cavities II Flashcards

(63 cards)

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1
Q

Nose includes:

A
  • External nose

- Nasal cavity

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2
Q

Fxns of the nose:

A
  • Olfaction
  • Respiration
  • Filtration
  • Humidification of inspired air
  • Elimination of secretions from paranasal sinuses and nasolacrimal ducts
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3
Q

External nose is mainly made of:

A

Cartilage

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4
Q

Extends from the nares anteriorly to the chonae posteriorly. Name the structure.

A

Nasal cavity

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5
Q

Nasal cavity is lined by:

A

Ciliated, mucus-secreting, highly vascularized mucosa.

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6
Q

Nasal cavity fxns:

A
  • warms, cleans, and humidifies air
  • olfaction
  • tear drainage
  • mucus production
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7
Q

Why does the nasal cavity produce mucus continuously?

A

to keep respiratory tract clean and moist

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8
Q

Roof of the nasal cavity is made of:

A

bone and cartilage

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9
Q

Lateral wall of the nasal cavity is made of these bones:

A 
Maxilla 
Conchae
Meatus
Perpendicular plate of the palatine bone 
Medial pterygoid plate
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10
Q

What is the purpose of the conchae?

A

To create turbulence in the inspired air, which increases surface area and humidifies inhaled air.

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11
Q

The area below each concha in the nasal cavity is called:

A

meatus

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12
Q

Medial wall of the nasal cavity is made of these bones:

A

Perpendicular plate of the ethmoid
Vomer
Septal cartilage

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13
Q

Floor of the nasal cavity is made of these bones:

A

Palatine process of maxilla

Horizontal plate of palatine bone

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14
Q

What structure of the nose forms the roof of the mouth?

A

Floor of the nasal cavity

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15
Q

choanae are bounded by these bones:

A
  • Anteriorly: horizontal plate of the palatine bone
  • Superiorly: sphenoid bone
  • Laterally: medial pterygoid plates
  • Medially vomer
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16
Q

Name the paranasal sinuses:

A
  • Frontal sinuses (2)
  • Ethmoid sunis
  • Sphenoid sinus
  • Maxillary sinus (2)
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17
Q

Name the openings of the nasal cavity:

A
  • Sphenoethmoidal recess
  • Frontonasal duct
  • Hiatus semilunaris
  • Nasolacrimal duct
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18
Q

Drainage from sphenoid sinus into the nasal cavity is via:

A

sphenoethmoidal recess

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19
Q

sphenoethmoidal recess opens into _____ in the nasal cavity.

A

superior concha

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20
Q

This sinus opens into the nasal cavity via frontomasal duct:

A

Frontal sinus

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21
Q

Frontonasal duct opens into _____ in the nasal cavity.

A

Middle nasal meatus

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22
Q

Hiatus semilunaris is located in the _______ and is the drainage site for _____, _______, and ______.

A

Middle meatus

Frontal sinus
anterior ethmoidal cells
Maxillary sinus

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23
Q

How does the lacrimal sac drain into the nasal cavity?

A

Via nasolacrimal duct

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24
Q

Nasolacrimal duct opens into the _____ in the nasal cavity.

A

inferior masal meatus

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25
_______ propel mucus through the choanae into the nasopharynx.
Beating cilia
26
What type of nerve fibers are found in the nasal cavity?
- GA (branches of V1 and V2) - SA (CN I) - VE (parasymp: pterygopalatine ganglion to mucosal glands) - VE (symp: ICA for vasoconstriction)
27
V1 and V2 branches of trigeminal innervate the nasal cavity by which type of fibers?
GA
28
CN I found in the nasal cavity has ____ fibers.
SA
29
Which arteries anastomose in the nasal cavity:
Maxillary and facial from external carotid artery + Ophthalmic from internal carotid artery
30
Venous drainage of the nasal cavity is via:
- Facial vein | - Pterygoid venous plexus
31
Name the main 3 parts of the ear:
- External - Middle - Internal
32
The external ear contains:
- Auricle - External acoustic meatus - Auditory canal - Tympanic membrane
33
The middle ear contains:
the ear ossicles.
34
____ and ____ ears are cavities within the petrous portion of the temporal bone.
Middle and internal
35
The internal ear contains:
- Motion sensors - Balance - Conversion of mechanical signals into electrical signals for hearing
36
This structure of the external ear collects sound.
Auricle
37
External acoustic meatus and canal fxn:
Conduct sound to the tympanic membrane
38
Moves in response to sound vibrations:
tympanic membrane
39
Name the external ear structure: | It is covered with thick skin externally and mucus membrane internally.
Tympanic membrane
40
External ear in innervated with which type of nerve fibers?
GA
41
Which CNs innervate the external ear?
- Auriculotemporal (V3) - Auricular branch of CN IX & X - GA branch of CN VII
42
Artery supply of the external ear is via:
Branches of ECA
43
Venous dranage of the external ear is via:
- External jugular vein - Superficial temporal vein - Pterygoid venous plexus
44
Middle ear is filled with ____ and lined with____.
air; mucosa
45
Middle ear is connected to nasopharynx via:
pharyngotympanic tube
46
What is the primary fxn of the middle ear?
Mechanical conduction of sound to fluid-filled inner ear.
47
Osseous chain in the middle ear contains:
Malleus (joined to tympanic membrane) Incus Stapes (sits in oval window)
48
Middle ear nerve fibers:
- GE - GA - VE
49
The GE fibers of the middle ear are:
- CN VII to stapedius | - V3 to tensor tympani
50
GA and VE fibers go through _____ in the middle ear.
Tympanic plexus
51
Tympanic plexus receives GA and VE via:
Sympathetic ICA plexus | Tympanic nerve from CN IX
52
Lesser petrosal nerve, a branch of tympanic plexus (CN IX) passes through _____ to ____ ganglion.
the middle ear; otic
53
Chorda tympani, a branch of CN VII passes through the middle ear to _____.
Submandibular ganglion
54
Pharyngotympanic tube connects _____ to ______.
middle ear; nasopharynx
55
This structure of the middle ear equalizes pressure.
Pharyngotympanic tube | "popping of eardrums"
56
Pharyngotympanic tube drains mucus from ____ and ______
Middle ear; mastoid air cells
57
Mastoid air cells are lined with ____ and filled with ____.
mucosa; air
58
Fxn of the mastoid air cells:
to lighten mastoid part of the temporal bone
59
Sound wave pathway starting the external ear:
external ear -> auditory canal -> vibrate tympanic membrane -> move handle and head of malleus -> move incus -> push stapes into oval window
60
Mechanical transmission of sound is done by two conductions:
- air conduction | bone conduction
61
Air conduction of sound wave pathway:
sound waves -> external ear -> ossicular chain -> cochlear duct
62
Bone conduction of sound wave is:
cochlear duct
63
This CN transmits mechanical sounds waves to brain waves.
CN VIII: vestibulocochlear nerve

H&N Anatomy Quiz 2 (7 decks)

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