Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Neuro > Oral Cavity And Pharynges > Flashcards

Oral Cavity And Pharynges Flashcards

(86 cards)

Start Studying
1
Q

Function of saliva?

A

Fluid that assists in initial activites of digestion
Moistens ingested food turning it into a semisolid bolus
Moistens and cleanses oral cavity
Contains antibodies and lysozyme
Water dissolves food so taste receptors can be stimulated

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

What are the three salivary glands? In order of production

A

Submandibular (60-70%)
Parotid (25-30%)
Sublingual (3-5%)

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

What is saliva mostly composed of?

A

Water (99%)

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

How much saliva do we secrete per day and when?

A

B/w 1-1.5 L

Mostly during meal time

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

What type of secretion does parotid gland give off?
Submandibular?
Sublingual?

A

Parotid: only serous
Submandibular: Both mucous and serous
Sublingual: Both mucous and serous

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

Besides water, what else is contained in saliva?

A

Electrolytes, immunoglobulin A, lysozyme, salivary amylase

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

How is saliva conducted to the oral cavity from the parotid gland

A

Thru the parotid duct

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

What is the largest salivary gland?

A

Parotid

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

What is the parotid gland stimulated by?

A

Inferior salivatory nucleus —> CN 9, lesser petrosal n. —> otic ganglion + auriculotemporal n (V3) —> parotid gland

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

What runs thru the parotid gland?

A

Facial n.

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

How is saliva conducted to the oral cavity from the submandibular glands?

A

Duct from gland will open thru papilla in the floor of the mouth on the lateral sides of the lingual frenulum

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

How is saliva conducted to the oral cavity from the sublingual glands?

A

Each gland extends multiple tiny sublingual ducts that open onto the inferior surface of the oral cavity posterior to submandibular duct papilla

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

How are the submandibular and sublingual salivary glands innervated?

A

Superior salivatory nucleus —> CN 7
CN 7 —> chorda tympani

Submandibular ganglion + Lingual N. (V3)

—> sublingual and submandibular glands

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

What is the oral vestibule?

How does it communicate?

A

Slit like space b/w teeth and gums and lips and cheek

Thru oral fissure

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

What is the oral cavity proper?
What is the roof?
What does it communicate with?

A

Where mastication and lingual manipulation of food occur

Palate

Oropharynx

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

What makes up the oral cavity?

A

Oral vestibule

Oral cavity proper

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

What makes up a tooth?

What kind of joint is it?

A

Exposed crown
Constricted neck
One or more roots anchoring it to jaw, fitting into dental alveoli

Gomphosis joint

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

What is a gomphosis joint made of?

A

Roots
Dental alveoli
Periodontal L.

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

How many teeth do infants have? When do they erupt?

A

20 deciduous teeth

Erupt b/w 6-30 months

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

Which teeth erupt first?

A

Anterior mandibular teeth

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

Why do third molar only partially emerge?

What can happen because of this?

A

Jaw lacks space to a ccomodate final molars

Wisdom teeth may become impacted and do not properly erupt

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

Order of teeth from “front teeth” back?

A

Incisors
Canines
Pre molars
Molar

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

What is the function of the uvula?

A

Assists soft palate in closing off entryway to nasopharynx when swallowing

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

What is the function of tonsils?

What are they composed of?

A

Detect antigens in swallowed food and drink and initiate immune response if necessary

Aggregates of partially encapsulated lymphatic tissue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
How do you anesthetize the: Nasopalatine N.?
Into incisive fossa in hard palate Affects palatial mucosa, lingual gingival, alveolar bone of six anterior maxillary teeth, hard palate
26
How do you perform a Greater palatine block?
Anesthetic into greater palatine foramen | N. Emerges b/w 2 and 3 molars
27
How do you perform an inferior alveolar n. Block?
Anesthetic into mandibular foramen lateral to pterygomandibular raphe
28
How is the tongue attached to the floor of the oral cavity?
Lingual frenulum (a thin vertical mucous membrane)
29
What covers the superior surface of tongue?
Numerous small projections, or papillae
30
What does the posterior surface contain?
Lingual tonsils
31
What is the anterior portion of the tongue
Apex to terminal sulcus
32
What is the posterior surface of the tongue?
From terminal sulcus/foramen cecum to root
33
What is the formaen cecum?
Remnant of the proximal part of embryonic thyroglossal duct
34
What lingual papillae can we find on the anterior part of tongue?
Fungiform Filiform (does not taste) Gallate Foliate
35
What do we find on the posterior part of the tongue?
Palatoglossus Palatine tonsil Terminal sulcus
36
What innervates stylopharyngeus?
CN 9 (3 pa)
37
Where does the superior constrictor attach?
To the buccinator
38
What innervates the pharyngeal constrictors?
Vagus N.
39
What is the function of Extrinsic tongue Ms. intrinsic tongue Ms?
Extrinsic: alter position of tongue Intrinsic: alter shape of tongue
40
What are the 4 extrinsic tongue Ms and what innervates them?
Genioglossus Hyoglossus Styloglossus ^^ all CN 12 Palatoglossus - CN 10
41
What are the 4 intrinsic tongue muscles? | Functions?
Superior longitudinal Inferior longitudinal —make tongue short thick and retracted Transverse Vertical —-make tongue long and narrow
42
What provides general sensation (touch, temp.) to anterior 2/3 of tongue?
Lingual N. (CN V3) does mucosa for ant. 2/3 of tongue
43
What does special sensation (taste) for ant. 2/3 of tongue?
Chorda tympani (CN 7)
44
What does general sensation for posterior 1/3 of tongue?
Glossopharyngeal N. (Lingual branch)
45
What does special sensation (taste) to the posterior 1/3 of the tongue?
Glossopharyngeal N. (Lingual branch)
46
What is the blood supply to the tongue?
Lingual artery Dorsal lingual As. Deep lingual As. Sublingual As.
47
What is the lymphatic drainage of the root of the tongue?
Drains bilaterally into the Superior deep cervical lymph nodes (Jugulodigastric to IJV)
48
What is the lymphatic draininage of the medial part of the body of the tongue?
Drains bilaterally and directly to the Inferior deep cervical lymph nodes (jugulo-omohyoid to IJV)
49
What is the lymphatic drainage of the R and L lateral part of body of tongue?
Drains to Submandibular lymph nodes (To deep cervical to IJV)
50
What is the lymphatic drainage of the apex and frenulum of tongue?
Submental lymph nodes | To deep cervical to IJV
51
Where and what are the palatine tonsils?
“The tonsils” as we classically think of them Masses of lymphoid tissue One on each side of the oropharynx
52
What is each tonsil bounded by?
Palatoglossal arch Palatopharyngeal arch Tongue
53
What does each tonsil form?
Lateral part of waldeyer’s ring
54
What is the lymphatic drainage of the tonsils?
Jugulodigastric (superior deep cervical l.n. To IJV)
55
What is the blood supply of the tonsils?
Facial a. (Tonsillar branch) | Asc. Palatine a. (Tonsillar branch)
56
What are the tonsils innervated by?
Glossopharyngeal n. | Maxillar n.
57
What is tonsillitis? Caused by? Presents as?
Inflammation of the palatine tonsils Usually caused by viral infection Difficult or painful swallowing w/ red and swollen tonsils w/ evident of purulent exudate
58
What is a tonsillectomy? What is a common complication? What is vulnerable to injury?
Removal of tonsils and urorunding conenctive tissue done by dissective the palatine tonsil from the tonsillar sinus Bleeding common bc of rich blood supply CN 9 vulnerable bc it accomplices Tonsillar a. (ICA also vulnerable bc it is directly lateral to the tonsils0
59
What is Waldeyer’s Ring?
Lymphatic ring composed of palatine, pharyngeal, and lingual tonsils Drains to deep cervical lymph nodes (to IJV)
60
What closes off the opening of the nasopharynx when swallowing?
Soft palate | Uvula
61
What are fauces? | What are they bounded by?
Opening for oropharynx By paired muscular folds and superiorly by soft palate Palatoglossus arch Palatopharyngeal arch
62
What is the innervation of the palate?
Nasopalatine n. (Mucous membr. Of anger. Part of hard palate) Greater palatine n. (Hard palate) Lesser palatine N. (Soft palate) Also V2 giving sensory
63
What is the blood supply to the palate?
Greater palatine a. (Chief blood supply) (hard palate) Lesser palatine a. (Anastomoses with ascending palatine a.)
64
What does Asc. Palatine a. Anastomoses with?
Lesser palatine a.
65
What are the veins of the palate?
Tributaries of the pterygoid venous plexus
66
What is the O and I of the Tensor Veli Palatini M.?
O: spine of sphenoid bone/pharyngotympanic tube I: palatine aponeurosis
67
What is the O and I of the Levator Veli Palatini?
O: Petrous part of temporal bone/ pharyngotympanic tube I: palatine aponeurosis
68
What is the O and I of Palatoglossus M.?
O: palatine aponeurosis I: Side of tongue
69
What is the O and I of the palatopharyngeal m.?
O: hard palate/palatine aponeurosis I: lateral wall of pharynx
70
Innervation of Tensor Veli Palatini?
CN V3 | Medial pterygoid n.
71
Innervation of Levator Veli Palatini?
CN 10 | Pharyngeal branch
72
Innervation of Palatoglossus M.?
CN 10 | Pharyngeal branch
73
Innervation of Palatopharyngeus m.?
CN 10 | Pharyngeal branch
74
Action of: Tensor veli palatini?
Tenses soft palate | Opens Pharyngotympanic tube during swallowing and yawning
75
Action of: Levator Veli Palatini
Elevates soft palate during swallowing
76
action of: Palatoglossus M.?
Elevator posterior tongue and draws soft palate onto tongue
77
Action of: Palatopharyngeus M.?
Tenses soft palate | Pulls pharynx superiorly, anteriorly, and medially during swallowing
78
What innervates the pharyngeal constrictors?
CN 10
79
What innervates stylopharyngeus ?
CN 9
80
What depressurizing the middle ear?
Tensor Veli Palatini
81
What would be the result of paralysis of tensor and levator veli palatini Ms.?
Paralysis leads to reflux of oral contents into nasal cavity (Pharyngotympanic tube dysfunction) Tensor - V3 Levator - X
82
What muscles raise the floor of the oral cavity?
Mylohyoid (n. To mylohyoid - V3) Palatoglossus M. (CN 10) Ms. Of tongue
83
Gag reflex in the upper portion of the mouth is induced by what nerve?
CN 9
84
Gag reflex int he lower part of the mouth is induced by?
CN 10
85
What are the steps to swallowing?
Step 1: voluntary; bolus compressed against palate, pushed form mouth into oropharynx via Ms. of tongue and soft palate step 2: involuntary; Soft palate is elevates sealing off nasopharynx from oropharynx and laryngopharynx Pharynx widens and shorten and suprahyoid Ms. contract, longitudinal pharyngeal Ms. elevate larynx Step 3: involuntary; Sequential contraction of all 3 pharyngeal constrictor Ms. forcing food bolus back
86
What innervates the nasopharynx, oropharynx, and laryngopharynx?
Naso: V2 Oro: CN 9 Laryngopharynx: CN 10 (Accounts for differences in gag reflex)

Neuro (18 decks)

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