midterm review - additional FOCUS Flashcards
what is a foramen magnum
the largest opening/foramen where the spinal cord goes through
what do the external and internal pterygoid muscles do
external - depresses mandible to open jaw
internal - closes the jaw
what do sinuses do and their names
sinuses provide mucus, makes bones lighter and provides resonence
maxillary sinus - largest
frontal sinuses
ethmoid sinus
sphenoid sinus
what are the ducts in the mouth
whartons duct - under tongue
stensons duct - side of cheek
what are the 3 types of tonsils
nasopharyngeal - found in nasopharynx
palatine tonsils - in between anterior and posterior pillars of fauces
lingual tonsils - in back of tongue
what do the palatine tonsils do
closes off the nasal pharynx to ensure food doesnt go into the nose
what is the vestibule
space between the teeth and inner mucosal lining of the lips and cheeks
what is the oral cavity proper
area inside of the dental arches
what are the different types of bone
periosteum - dense membrane made of white connective tissue
compact bone - hard, dense outer layer of bone
cancellous bone - made of spongy, bony spicules
what is the anatomic crown
portion of the tooth covered in enamel (whole tooth including the roots)
what is the clinical crown
portion of the tooth visible in the mouth
what are the odontoblasts and cementoblasts
cementoblasts - cells that form cementum
odontoblasts - cells that form dentin
what are parts of the pulp
- pulp horns
- coronal pulp
- accessory canal
- radicular canal
- apical foramen
what is the nerve in the incisive papilla
nasopalatine nerve
why is the gingival sulcus iportant
determines overall health of gingiva, detects periodontal disease
difference between line angle and point angle
line angle - where two tooth surfaces meet
point angle - where three or more surfaces meet to a point
where are the cusps or carabelli
max first molars
what is the difference between eruption and exfoliation
eruption - when teeth come out and sho through the gingiva
exfoliation - when the teeth fall out
what are the diastema and primate spaces
diastema is the space between two teeth
primate spaces are spaces between every primary teeth
what are the classes of occlusion
class I - overcrowding or spacing
class II - div 1, overbite and anteriors protrude facially, div 2, overbite and laterals overlap centrals
class III - underbite
what is immunity
resistance to infection
what is osteosarcoma
malignant tumour that involves the bone
what is Bell palsy
paralysis of facial nerve
what is the difference between bruxism and abrasion
bruxism - involuntary griding or clenching of teeth
abrasion - abnormal wearing away of tooth structure
what are tori
bony overgrowth of the palate or the mandible
what is anodontia
condenitally missing teeth
- usually the third molars or laterals
- premolars
what is candidiasis
yeast infection in the mouth
what is glossitis
inflammation of the tongue