Sub-mandibular Region Flashcards
What are the four muscles found in the floor of the mouth
- Mylohyoid
- Geniohyoid
- Hyoglossus
- Genioglossus
Muscle which forms a mobile diaphragm flooring the oral cavity, going from medial aspect of mandible to the hyoid bone
Mylohyoid muscle
Muscle which attaches to the inferior mental spine then to the anterior surface of the hyoid bone
Geniohyoid
Muscle which attaches to lateral upper surface of hyoid bone, and asends vertically to the side of tongue
Hyoglossus
Muscle which attaches to the mental spine of mandible and radiates into the tongue to mix with tongue muscle fibres
Genioglossus
What muscles are attached to the pterygomandibular raphe
- Superior constrictor (posteriorly)
- Buccinator (anteriorly)
Where does the submandibular duct exit into the mouth
At the sublingual papilla at the base of the lingual fraenum
What nerve supplies motor to the muscles of the tongue
Hypoglssal (CN XII)
Name 4 types of papillae found on the tongue
- Filiform
- Fungiform
- Vallate
- Foliate
What are the most numberous papillae found on tongue?
Filiform
Which of the papillae on the tongue have taste buds in them?
- Fungiform
- Vallate
Where are the foliate papillae located?
Laterla margins of tongue
4 extrinsic muscles of the tongue and 4 intrinsic muscles of the tongue:
Extrinsic:
- Styloglossus
- Hyloglossus
- Genioglossus
- Palatoglossus
Intrinsic:
- Superior longitudinal fibres
- Inferior longitudinal fibres
- Transverse fibres
- Vertical fibres
Which of these muscles is not innervated by the hypoglossal nerve:
- a) Styloglossus
- b) hyloglosssus
- c) genioglossus
- d) palatoglossus
d) palatoglossus
What nerve supplies the palatal mucosa for the anterior 3-3 maxillary teeth?
Nasopalatine nerve
(emerges from the incisive fossa)
