Ch 24 Digestive Part 2 Flashcards
What is the protective lining of the mouth/oral cavity
nonkeratinized stratified squamous epithelium
What are the 2 regions of the mouth
-vestibule (space between lips, cheeks and teeth
-oral cavity proper (medial to teeth)
What is the posterior arches area boundary of the mouth that is the opening to the oropharynx
Fauces
What parts of the mouth play a role in mastication and speech (but its not teeth)
lips and cheeks
What part of the mouth is the attachment of lip to the gingiva in the vestibule
labial frenulum
What part of the mouth separates the oral and nasal cavities and prevents food passage into the nasal cavity as chew and swallow
palate
What part of the mouth is anchored to the floor of the mouth by the lingual frenulum and helps to aid in mastication and swallowing
tongue
What is the role of teeth/dentition
mastication of food, aid in speech
What are the four types of teeth
incisors
canines (eyetooth)
premolars (bicuspids)
molars
What type of tooth cuts/ bites the food
incisors
What type of tooth tear flesh
canines
What type of tooth premolar grind and crush
premolars
What are the baby teeth called and how many are there
deciduous teeth (milk or primary)
20!
2,1,0,2 x2
What age do central incisors come in
6M
What are adult teeth called and how many are there
permanent teeth
32!
2,1,2,3 x2
What are the 3rd molars that emerge bewteen 17-25 and if are impacted must be excised
wisdom teeth
What are the 2 major regions of a tooth
crown and root
The crown of the tooth is covered in what hard substance that is exposed above the gingiva
enamel (hardest substance in the body)
