9.1 The Oral Cavity and Tongue Flashcards
Where is the oral vestibule?
Between lips and teeth
Where does the parotid gland open into the oral cavity?
Opposite 2nd molar tooth
What kind of mucous membrane lines the inner cheek?
Buccal mucosa
What kind of mucous membrane lines the lower gum?
Inferior buccal gingiva
What kind of mucous membrane lines the upper gum?
Superior buccal gingiva
What kind of mucous membrane lines the inner lip?
Labial mucosa
What attaches the lips to the gums?
Labial frenulum
What attaches the tongue to the inferior oral cavity?
Lingual frenulum
What is the hard palate?
Superior border of oral cavity
Bony plate separating nasal cavity from oral cavity
What epithelium is found in the oral cavity?
Stratified squamous
What bones make up the hard palate?
Maxilla
Palatine
Pterygoid
Vomer
What is the soft palate?
Posterior border of the oral cavity
Muscular structure of soft tissue
Name the muscles that make up the soft palate of the oral cavity
Levator veli palatini Tensor veli palatini Palato pharyngeus Palato glossus Uvulae
Which muscles of the oral cavity are innervated by the vagus nerve?
Tensor veli palatini
Palato pharyngeus
Palato glossus
If there is damage to the nerves of the left side of the soft palate, which way will the tongue deviate?
Right- moves away
Give 2 examples of when the airway can be lost
Anaphylactic shock
Foreign body blockage
Mouth abscesses
Where do the submandibuar and sublingual glands open up into the oral cavity?
Floor of mouth, lateral to lingual frenulum
Name the 4 areas of lymphoid tissue in/around the oral cavity
Palatine tonsil
Lingual tonsil
Adenoids
Tubal tonsil
Why is it important to have lymphoid tissue in the oral cavity?
Entry site for pathogens via air, food or water
List the 3 parts of the tongue
Apex
Body
Root
Which nerve innervates the motor function of the tongue?
Hypoglossal
Which nerve innervates the sensory function of the tongue?
Glossopharyngeal
Which nerves innervate the special sensory function of the tongue?
Chorda tympani
Lingual nerve
Name the intrinsic muscles of the tongue
Superior longitundinal
Vertical
Transverse
Inferior longitudinal
Name the extrinsic muscles of the tongue
Styloglossus
Hypoglossus
Genioglossus
Name the teeth
Central incisor Lateral incisor Canine 1st premolar 2nd premolar 1st molar 2nd molar 3rd molar (wisdom tooth)
What is a cleft palate?
Deformity in the formation of the hard palate
What is a cleft lip?
Deformity in the nasolabial septum
What is gingivitis?
Inflammation of the gingiva
What is tonsillitis?
Inflammation of the tonsils
What is a peritonsillar abscess?
Result of deep infection of the tonsils which causes deviation of the uvula. Absesses can burst and pus drains into throat. Also called Quinsy
What is a mucocoele?
Ulcer of the lip
