Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Head and Neck - Anatomy > Week 2 - Nasal cavity and Mandible > Flashcards

Week 2 - Nasal cavity and Mandible Flashcards

1
Q

What are the functions of the nose?

A

Traps dirt
Humidification of inspired air
Respiration
Olfaction - smell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What 2 parts is the nose made up of?

A

External nose - bony framework
Nasal cavity - midline nasal septum and continues posteriorly with space of nasopharynx

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Describe the palate

A

Forms the floor of the nasal cavity and separates it from the oral cavity
Vault shaped bony palate anteriorly and posteriorly a soft palate between nasopharynx and oro-pharynx

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the functions of the larynx?

A

Open valve in respiration
Partially closed valve which is modified in phonation
Closed when protecting trachea and bronchial tree during deglutition

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the function of the pharynx?

A

Common entrance to respiratory and alimentary tracts
Important in swallowing and breathing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the 3 portions of the pharynx?

A

Nasopharynx
Oropharynx
Laryngopharynx

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Where does the oesophagus and trachea begin?

A

C6

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Where is the nasion of the nose?

A

Midline bony depression between eyes where 2 nasal bones meet
Nasal bone articulate with frontal bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Describe the outside of the nose

A

Frontal bone attaches to nasal bones and maxillary
There is septal cartilage and major alar cartilage to make extension

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is number 1?

A

Nasal bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is number 2?

A

Lateral process of septal cartilage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is number 9?

A

Medial pterygoid plate of sphenoid bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is number 4?

A

Maxilla

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is number 5?

A

Lacrimal bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is number 6?

A

Superior and Middle conchae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is number 7?

A

Inferior conchae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is number 8?

A

Perpendicular plate of palatine bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is the roof of the nose formed by?

A

Nasal bones, parts of frontal bone, ethmoid bone - cribriform plate and body of sphenoid bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is the floor of nasal cavity made up of?

A

Palatine processes of maxillae and palatine bones which form hard palate
Extends posteriorly to soft palate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What 2 bones form the nasal septum?

A

Vomer bone
Perpendicular plate of the ethmoid bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What structure lies anterior to bones of nasal septum?

A

Septal cartilage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What passes through the cribriform plate?

A

Olfactory nerves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What attaches to crista galli?

A

Falx Cerebri

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What are important parts of the ethmoid bone?

A

Cribriform plates
Crista galli
Central plate
Superior and middle conchae
Ethmoidal air cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
What kind of epithelium forms the respiratory mucosa which lines nasal cavity?
Pseudostratified ciliated columnar epithelium
26
What is the nasal cavity lined in?
Olfactory mucosa
27
What nerve is responsible for sense of smell and innervates the mucosa?
Olfactory nerves - CN1
28
What plate of bone lying on roof of cranial cavity do axons of olfactory nerves pass through?
Cribriform plate of the ethmoid bone
29
What is the name given to space above superior conchae?
Spheno-ethmoidal recess
30
What are conchae and meatus of the nose?
Projections - conchae Space inferior - meatus Have superior, middle and inferior of both
31
What bone are superior and middle conchae a part of?
Ethmoid bone
32
What is the blood supply of the nose?
Rich arterial supply from the ophthalmic artery - ICA Also branches of ECA
33
What are paranasal air sinuses?
Air filled extensions of the respiratory part of nasal cavity in corresponding bones - frontal, ethmoid, sphenoid, and maxilla
34
What are the functions of the paranasal air sinuses?
Humidify air Contain cells precipitating in immune system
35
Where does the sphenoid sinus drain into?
Spheno-ethmoidal recess
36
What drains into middle meatus?
Anterior and middle ethmoidal cells, maxillary and frontal sinuses
37
What drains into superior meatus?
Posterior ethmoidal cells
38
What opens into the inferior meatus?
nasolacrimal duct from lacrimal sac opens into anterior part of this meatus
39
Which sinus has opening not at most inferior part so can have issues draining?
Maxillary
40
Which air sinus is often indented by tooth sockets?
Maxillary
41
What nerve innervates the sinuses?
Trigeminal - CN V Frontal - supraorbital Maxillary - alveolar nerves Sphenoid - posterior ethmoidal Ethmoidal - nasociliary nerves
42
What is the function of the nasopharynx?
Prevents regurgitation of food through nose
43
What bones form the roof of nasopharynx?
Body of sphenoid bone and basilar part of occipital bone
44
What important structures lie in the nasopharynx?
Adenoids (nasopharyngeal tonsils)- collection of lymphatic tissue Eustachian tube - orifice
45
What are the main parts of the mandible?
Condylar process (posterior) and Coronoid process (more anterior) Angle, Mental foramen and mental tubercle Mandibular foramen Mental spine
46
How many teeth are in deciduous?
8 incisors 4 canines 8 molars
47
How many teeth are perminant?
8 incisors 4 canines 8 premolars 12 molars
48
What type of joint is the temporomandibular joint?
Synovial hinge joint
49
What 2 articular processes help form the temporomandibular joint?
Mandibular fossa of temporal bone Condylar process of mandible
50
What movements can mandible occur at TMJ?
Elevation, retraction, protrusion, depression and side to side movements
51
Describe the muscles of mastication
Group of 4 muscles used for chewing which act on the TMJ Includes the temporalis, masseter, medial and lateral pterygoid
52
What are the bony attachments of the temporalis muscle?
Temporal fossa of skull Coronoid process of mandible
53
What is the function of the temporalis muscle?
Anterior fibres help elevate the mandible closing mouth Posterior retract mandible so jaw moves posteriorly
54
What are the bony attachments of the masseter?
Maxillary process of zygomatic bone and zygomatic arch
55
What is the action of the masseter muscle?
Elevates mandible
56
Where do the two mastication muscles attach?
Lateral pterygoid plate of the skull Lateral - lateral surface of lateral pterygoid plate Medial - medial surface of lateral plate
57
At which part of the mandible does the medial pterygoid muscle attach?
Medial surface of ramus of mandible
58
When 2 lateral pterygoid muscles contract they cause?
Protraction of mandible
59
Which muscles cause mandible depression?
Suprahyoid muscles and gravity is also a depressor
60
What muscles cause elevation of the mandible?
Temporalis Masseter Medial pterygoid
61
What muscles cause depression of the mandible?
Lateral pterygoid Suprahyoid Infrahyoid
62
What muscles cause protrusion of mandible?
Lateral and medial pterygoid muscles Masseter
63
What muscles cause retraction of the mandible?
Temporalis Masseter
64
What muscles cause side to side movements of the mandible?
Temporalis of same side Pterygoids of different side Masseter
65
What nerve innervates the muscles of mastication?
Mandibular division of trigeminal nerve - CNV3 Only branch of trigeminal nerve that carries motor and sensory function
66
Where does the mandibular nerve emerge from cranial cavity?
Foramen ovale
67
In which fossa do motor branches of mandibular nerve supply the muscles of mastication?
Infratemporal fossa
68
Which branch of mandibular nerve enters the mandibular foramen?
Inferior alveolar nerve - sensory innervation

Head and Neck - Anatomy (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions