Brainscape's Knowledge GenomeTM

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


See full index

NeuroEndo Test 1 > Oral Cavity and Pharynges > Flashcards

Oral Cavity and Pharynges Flashcards

1
Q

What is gingivae? What is its function?

A

Dense connective tissue

Surrounds necks of teeth and covers alveolar processes

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

What is the hard palate? What is its function?

A

Anterior 2/3 roof of mouth, bony shelf covered by sense connective tissue and non-keratinized squamous epithelium

Separates oral from nasal cavity

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

What do the lips form? What are they made of? What is their function

A

Part of anterior walls of oral cavity
Keratinized stratified squamous epithelium
Close oral cavity during chewing

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

What are the three large salivary glands?

A

Parotid
Sublingual
Submandibular

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

What is the soft palate? What is its function?

A

Formed from skeletal muscle, covered with nonkeratinized stratified squamous epithelium, uvula hangs from it
Posterior 1/3 of roof of mouth

Helps close off opening to nasopharynx when swallowing

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

Where do teeth project from? What are their function?

A

Maxillae and mandible

Mastication

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

What is the tongue composed of? What is its function?

A

Skeletal muscle (somatic motor) covered by stratified squamous epithelium, surface covered by papillae

Pushes food against palate to turn it into a bolus; detects tastes
- manipulates and mixes ingested material

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

What are tonsils? What are their function?

A

Partially encapsulated lymphatic tissue

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

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

What is the vestibule? What is its function?

A

Space between cheek and gums

Space where ingested materials are mixed with saliva and mechanically digested

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

What does the uvula extend from? What is its function?

A

From the soft palate, small conical muscular projection

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
11
Q

What closes off the opening of the nasopharynx when swallowing?

A

soft palate and uluva elevate

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

What are fauces? What are they bounded by?

A

Opening between the oral cavity and the oropharynx

Paired muscular folds:
- ant= glossopalatine arch
- post= pharyngopalatine arch
innervated by CN X

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

What is the lingual frenulum?

A

Attaches inferior surface of tongue to the floor of the oral cavity

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

Where can you find lingual tonsils?

A

Posterior surface of the tongue

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

What innervates the parotid, submandibular, and sublingual salivary glands?

A

Parotid= glossopharnygeal parasympathetic stimulates salivary secretions
Submandibular and sublingual= facial n. via chorda tympani parasympathetic

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

What sympathetically stimulates mucus secretion?

A

Cervical ganglia

Mucus only secreted by submandibular and sublingual not parotid

17
Q

Where is the parotid gland found? What does its duct open up into?

A

overlying the masseter muscles, ant. and inf. to the ear

Oral vestibule next to the second upper molar

18
Q

What gland produces the most saliva? Where does it duct open up into?

A

Submandibular

Each gland opens through a papilla in the floor of the mouth on the lateral sides of the lingual frenulum

19
Q

Where do the sublingual glands open onto?

A

The inferior surface of the oral cavity, posterior to the submandibullar duct papilla

contribute the smallest amount of saliva

20
Q

What are the functions of saliva?

A

Moisten ingested food (makes it easier to turn into bollus)
Cleanses the oral cavity
First step in chemical digestion, amylase breaks down carbs
Lysozyme= antibody/antibacterial to inhibit bacterial growth in oral cavity
Watery medium for dissolved food so taste receptors can be stimulated

21
Q

What are the parts of the tooth?

A

Crown, constricted neck, and one or more roots that anchor it to the jaw

22
Q

Where do the roots of teeth sit?

A

Tightly in the dental alveoli= sockets within alveolar processes of the maxillae and mandible

23
Q

Why is important to maintain the health of the periodontal ligament?

A

Need that tension, if you don’t have that tension then lose a layer of alveolar bone

24
Q

What artery, nerve, and vein can be found in the root canal of a tooth?

A

Interior alveolar a. n. and v. coming from apical foramen

25
Q

How many teeth do we have as an infant? How many teeth do we have as an adult

A

20 deciduous teeth

32 permanent teeth (including third molars aka wisdom teeth which are normally removed)

26
Q

Where do you anesthetize if you want to do dental work on the lower jaw?

A

Interior alveolar, inject just lateral to pterygomandibular raphe

27
Q

Where do you anesthetize for dental work on the upper jaw?

A

Different spots you have to inject in depending on what teeth you are workingo n

28
Q

What makes up Waldeyer’s lymphatic ring?

A

Palantine, pharyngeal, and lingual tonsils

Protective of airway and food hole

Drain to deep cervical LNs

29
Q

What is the function of the tensor veli palatini? What is its innervation?

A

Tenses soft palate and depressurizes middle ear by acting on pharyngotympanic tube

CN V3

30
Q

What is the function of the levator veli palatini? What is its innervation?

A

Elevates tensed palate and acts on pharyngotympanic tube

CN X

31
Q

What happens if either or both of the veli palantini muscles are paralyzed?

A

Reflux of oral contents into the nasal cavity and pharyngotympanic tube dysfunction

32
Q

What nerve do you run into when you do a tonsillectomoy? What areteries?

A

Glossopharyngeal n. (just lateral to palatine tonsil)

Tonsillar branch of ascending palatine a.
Tonsillar branch of facial a.

33
Q

What is the first stage of swallowing?

A

Voluntary
Bolus compressed against the palate and pushed from the mouth into the oropharynx through movements of the tongue and soft palate

34
Q

What is the second stage of swallowing?

A

Involuntary and Rapid
Soft palate elevated sealing off the nasopharynx from the oropharynx and laryngopharynx
Pharynx widens and shortens to receive the bolus of food
Suprahyoid muscles and longitudinal pharyngeal muscles contract elevating the larynx

35
Q

What is the third stage of swallowing?

A

Involuntary

Sequential contraction of all 3 pharyngeal constrictor muscles forcing the food bolus inferiorly to the esophagus

36
Q

What does the pharyngeal plexus provide sensory innervation to?

A

Oropharynx (CN IX) and laryngopharynx (CN X)

- the nasopharynx above the pharyngotympanic tube and torus tubaric is innervated by CN V2)

37
Q

What is the afferent and efferent signals for gagging?

A 
Afferent= glossopharyngeal
Efferent= Vagus

NeuroEndo Test 1 (14 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions