Oral Cavity Flashcards
What are the divisions of the oral cavity
Vestibule: between the lips/cheeks and teeth and gums
Oral Cavity Proper: includes the tongue
What areas does the oral cavity communicate with
exterior world through rima oris (oral fissure)
oral pharynx posteriorly through the fauces
What are the contents of the vestibule
Frenulum Vestibule
Parotid Papillae
What are the contents of the oral cavity proper
Frenulum lingulae
sublingual carunculae
sublingual folds
What materials make up the tooth
Enamel-covers the crown
Dentine- ivory- most of body of tooth
What fills the pulp cavity
Dental/vascular pulp: loose CT w/ vessels and nerves
What lines the pulp cavity and what is the linings function
odontoblast– makes dentine
What does the periodontal ligament do
attaches the root of the tooth to the alveolar process – cementum attaches the ligament membrane to the root of tooth
How many deciduous teeth are usually found
20 Total 2 incisors 1 canine 0 premolars 2 molars
How many permanent teeth are usually found
32 total 2 incisors 1 canine 2 premolars 3 molars
What are the two parts of the tongue
Root
Body
What is the root of the tongue
Muscles of the tongue that are attached to the hyoid bone and the mandible and styloid process
Provides a firm base for tongue movement
Where is the terminal sulcus of the tongue found
dividing the tongue into a posterior 1/3 and anterior 2/3
What is the foramen cecum
shallow depression at the midpoint of the terminal sulcus
What is the dorsal median sulcus located
dividing the anterior 2/3 of tongue at the midline
What gives the tongue its rough appearance
lingual papilla
What are the 4 types of lingual papilla
Filiform Papilla
Fungiform Papilla
Vallate Papilla
Folate Papilla
Which papilla are the most common
filiform papilla
Where are the Vallate papilla located
V shaped line anterior to terminal sulcus
What glands are located in the vallate papilla
Von Ebners Glands
Which papilla have taste receptors
Fungiform Papilla
Vallate Papilla
Folate papilla
What other structures are the taste buds located on
palate and epigolttis
What lymphoid tissue is located on the posterior 1/3 of the tongue
lingual tonsils
What is the epiglottic valleculae
right and left depression between posterior base of tongue and epiglottis
