oral cavity

Question 1

oral cavity

what are the anatomical boundaries - oral cavity

Answer 1

oral fissure - anterior opening
roof - hard & soft palate
floor - soft tissues of tongue and muscular diaphragm
posterior aperture - oropharyngeal isthmus

Question 2

oral cavity

roof - anterior

what is the nerve and artery for the incisive fossa?

Answer 2

• nasopalatine nerves
• sphenopalatine artery

Question 3

oral cavity

oral cavity roof- anterior
what is the nerve and artery associated with the greater palatine foramen?

Answer 3

• greater palatine nerve
• descending palatine artery

Question 4

oral cavity

oral cavity roof - anterior
what is the nerve associted wit hthe lesser palatine foramen?

Answer 4

lesser palatine nerve

Question 5

oral cavity

What is attached to the styloid process?

there is 5

Answer 5

1. stylohyoid ligament
2. stylomandibular ligament
3. styloglossus muscle (innervated by the hypoglossal nerve)
4. stylohyoid muscle (innervated by the facial nerve)
5. stylopharyngeus muscle (innervated by the glossopharyngeal nerve)

Question 6

oral cavity

what are the 5 muscles of the soft palate? What are they innervated by?

Answer 6

tensor veli palatini
levator veli palatini
- both innerved by CN V3

musculus uvulae
palatopharyngeus
palatoglossus
- innervated by vagus nerve CN X

Question 7

the floor of the oral cavity is formed by 3 things, what are they?

Answer 7

• mylohyoid msucles (CN V3)
• geniohyoid muscles (C1)
• tongue

Question 8

oral cavity

glossopharyngeal nerve branches

there are 6

Answer 8

1. Tympanic n.
2. branch to carotid sinus
3. branch to stylopharygneus
4. tonsillar branches
5. lingual branches
6. pharyngeal branches

Question 9

the parotid gland has parasympathetic innervation via what

Answer 9

glossopharyngeal nerve via the otic ganglion

Question 10

much of the oral cavity drainage is to what veins?

Answer 10

pterygoid plexus of veins and lingual vein
which dumps into the maxillary vein and that dumps into the retromandibular vein

Question 11

much ofthe blood to the oral cavity comes from what arteries?

Answer 11

lingual artery and palatine arteries

Question 12

What nerve innervates all extrinsice and intrinsice muscle of the tongue except for palatoglossus?

Answer 12

hypoglossal

Question 13

what tongue muscles are innervated by the vagus nerve?

Answer 13

palatoglossus