Brainscape's Knowledge GenomeTM

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


See full index

Gross Anatomy 4 > Oral Cavity > Flashcards

Oral Cavity Flashcards

1
Q

Describe the nerves that supplies taste to the anterior 2/3rds of the tongue?

A

Chorda Tympani of CNVII. Fibres are carried by lingual nerve to the anterior portion of the tongue

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

Palatine glands are embedded in the mucosa of the hard palate, what nerve innervates these?

A

Facial nerve CN VII

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

What are the extrinsic tongue muscles? (4)

A

Genioglossus
Palatoglossus
Styloglossus
Hyoglossus

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

What is this muscle and its role?

A

Genioglossus

Depress the tongue and protrude the tip

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

What is this muscle, its role and innervation?

A

Genioglossal - C1 nerves carried in CN IX

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

What is the nerve supply to the teeth?

A

Branches of CNV2 supply the upper teeth and gums

Branches of CNV3 supply lower teeth and gums

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

What bones make up the hard palate?

A

Maxilla and Palatine

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

What is this muscle and its role?

A

Styloglossus

Elevates and retracts the tongue

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

What is the blood supply to the teeth and gums?

A

Alveolar branches of the maxillary artery

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

What is the innervation of the parotid gland and where does it open into the oral cavity?

A

CN IX

Opens at the upper 2nd molar on each side

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

What are the attachments and the role of palatoglossus?

A

From the palatine aponeurosis to the tongue

Elevates the tongue and helps close the oral cavity from the oropharynx

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

What is the blood supply to the palate?

A

Greater palatine artery
Arises in pterygopalatine fossa as branch of maxillary artery then descends the palatine canal to enter the greater palatine foramen

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

What is the innervation of the muscles of the soft palate?

A

All innervated by CN X except for tensor veli palatine which is innervated by CN V3

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

What muscle forms a diaphragm on the floor of the mouth?

A

Mylohyoid

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

What is the main nerve of motor supply to the tongue?

A

Hypoglossal nerve CN XII

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

What is this muscle, its role and innervation?

A

Digastric muscle - works to elevate the hyoid or depress the mandible

Anterior belly = CN V3
Posterior belly = CN VII

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

What is the role of the musculus uvulae and where does it attach?

A

Forms the muscular core of the uvula - from the palatine bones to the palatine aponeurosis
Elevates and retracts the uvula

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

What is the innervation of the submandibular gland and where does it open into the oral cavity?

A

CN VII

Duct opens between the 1st and 2nd incisors on either side of the frenulum on the floor, on each side

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

What is this muscle and its role?

A

Hyoglossus

Depresses the tongue

20
Q

What nerve innervates the intrinsic muscles of the tongue?

A

Hypoglossal - CN XII

Exception is palatoglossus (CN X)

21
Q

What papillae of the tongue act as a rough divide between the anterior 2/3rds of the tongue and the posterior 1/3?

A

Vallate papillae

22
Q

What is the innervation of the palate?

A

Branches of CNV2 from the pterygopalatine (sphenopalatine) ganglion

23
Q

What is the sensory innervation of the palates?

A

Branches of the greater and lesser palatine nerves (CN V2)

Also from CN IX (Glossopharyngeal)

24
Q

What are the 5 muscles of the soft palate?

A 
Levator veli palatine
Tensor veli palatine
Musculus uvulae
Palatoglossus 
Palatopharyngeus
25
Q

What cranial nerve is responsible for the gag reflex?

A

Glossopharyngeal nerve CN IX

26
Q

What is the venous drainage of the tongue?

A

Mainly via the lingual vein which communicates with IJV

27
Q

What is this muscle?

A

Salpingopharyngeus

28
Q

What is this muscle, its role and innervation?

A

Mylohyoid - CN V3#

Elevates the hyoid and oral floor or depresses the mandible

29
Q

What is the blood supply to the tongue?

A

The lingual artery

2nd anterior branch of ECA

30
Q

What is the lymphatic drainage of the tongue?

A

Tip drains to submental
Lateral aspects drain to submandibular
Central and posterior aspects drain into the deep cervical nodes

31
Q

What nerve is the lingual nerve a branch of and what is its role?

A

Branch of CN V3
Supplies sensory innervation to the anterior 2/3rds of the tongue
Also carries taste and parasympathetic fibres from CN VII

32
Q

Describe the attachments of the muscles of the oral cavity to the mandible

A

Mylohyoid - attaches to the mylohyoid line of the mandible
Geniohyoid - attaches to the inferior genial tubercle of the mandible
Genioglossus - attaches to the superior genial tubercle

33
Q

What is this muscle, its role and its innervation?

A

Stylohyoid - CN VII

Elevates the hyoid bone

34
Q

What are the supra-hyoid muscles? (4)

A

Mylohyoid
Digastric
Stylohyoid
Geniohyoid

35
Q

What muscles forms the lateral walls of the oral cavity?

A

Buccinator

36
Q

What is the innervation of the posterior 1/3 of the tongue?

A

Glossopharyngeal nerve CN IX

Supplies both taste and general sensory

37
Q

What is this muscle, its action and its attachments?

A

Tensor veli palatini - Tenses the soft palate

Runs from cartilage of auditory tube, wraps tendon round pterygoid hamulus then to the palatine aponeurosis

38
Q

Where is the main lymphatic drainage of the palates?

A

Deep cervical nodes

39
Q

What is the innervation of the sub-lingual gland and where does it open into the oral cavity?

A

CN VII

Has many small ducts that open directly into the floor of the mouth

40
Q

What is this muscle and its role?

A

Palatoglossus

Elevates the tongue and moves the soft palate

41
Q

What are the 3 salivary glands?

A

Parotid
Sublingual
Submandibular

42
Q

What is the innervation of the extrinsic tongue muscles?

A

Palatoglossal - CN X in pharyngeal plexus

Hypoglossal (CNXII) supplies the rest

43
Q

What is this muscle, its role and attachments?

A

Levator Veli Palatini - Acts to raise the soft palate

Runs from petrous temporal bone and cartilage of auditory tube to the palatine aponeurosis

44
Q

Describe the tissue folds that sit on either side of the uvula

A

Anterior fold = palatoglossal arches
Posterior fold = palatopharyngeal arches

Arches are created by the muscles of the palate that pass to the tongue and pharynx

45
Q

What is the role of the extrinsic muscles of the tongue?

A

Move the tongue around the oral cavity

Helps mold the food and pass the bolus back to the oral cavity to be swallowed

Gross Anatomy 4 (14 decks)

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