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41 Cards in this Set
- Front
- Back
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Oral epithelium is what type of epithelium?
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Stratified squamous
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Cell turnover in oral epithelium is quick or slow?
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Quick
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Layers of keratinized epithelium? (4)
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1. Stratum basale
2. Stratum spinosum 3. Stratum granulosum 4. Stratum corneum |
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Layers of non-keratinized epithelium? (4)
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1. Stratum basale
2. Stratum spinosum 3. Stratum intermedium 4. Stratum superficiale |
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Where is masticatory mucosa found? (2)
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1. Hard palate
2. Attached gingiva |
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What is mucoperiosteum?
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Lamina propria attaches directly to periosteum-- no submucosa
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High connective tissue papillae found in what type of mucosa?
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masticatory mucosa
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Keratinization of masticatory mucosa?
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Either keratinized or parakeratinized
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Where are sutures not needed in an incision?
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1. Hard palate
2. Attached gingiva Incision won't spread apart cus mucosa is so thick |
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Injections are more painful in what areas of the mouth?
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Masticatory mucosa-- hard palate & attached gingiva --> Lamina propria is so dense, diffusion is slow
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Is swelling a problem in masticatory mucosa?
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Very painful-- tissue is tight & not much room for expansion
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Where is lining mucosa found? (3)
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1. Buccal
2. Under tongue 3. Insides of lip |
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3 layers of lining mucosa?
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1. thick non-keratinized epithelium
2. thick loose lamina propria 3. Elastic submucosa |
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Incisions need to be sutured in which type of mucosa?
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Lining mucosa-- they will gape open
(buccal, under tongue, inside lips) |
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Why are injections and swelling less painful in lining mucosa?
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Looser lamina propria-- more elastic tissue & room for diffusion
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3 parts of the lip?
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1. Exterior
2. Vermillion border 3. Oral surface |
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What type of epithelium is found on exterior of lip?
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Thin skin-- stratified squamous keratinized epithelium
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Oral surface of lip is made of which type of epithelium?
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Thick stratified squamous non-keratinized epithelium
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Mucosa of oral surface of lip & vermillion border attaches to?
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underlying muscle-- obicularis oris
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What type of mucosa makes up vermillion border of lip?
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Thin stratified squamous parakeratinized epithelium
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What gives red color to vermillion border?
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Capillaries close to surface
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What are Fordyce's spots?
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Sebaceous glands inside of mouth-- abundant in corners of mouth
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Soft palate is composed of what type of epithelium?
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Oral surface: Stratified squamous non-keratinized epithelium
Nasal surface: Pseudostratified ciliated columar epithelium |
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What type of mucous glands are present in submucosa of soft palate?
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Minor salivary glands
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Pharynx is composed of what type of epithelium?
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Stratified squamous non-keratinized epithelium
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Skeletal muscle in tongue present in what orientaion?
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3 different orientations
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Tongue composed of what type of epithelium?
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Stratified squamous non-keratinized epithelium
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Characteristics of ventral surface of tongue? (3)
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1. Smooth
2. Thin epithelium 3. High CT papillae |
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4 types of papillae on tongue?
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1. Filiform
2. Fungiform 3. Foliate 4. Circumvallate |
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What type of papillae do not have taste buds?
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Filiform
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Largest & least abundant type of papilla of tongue?
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Circumvallate papilla
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Which papilla are located on sides of tongue?
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Foliate
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Taste buds are located where on circumvallate papillae?
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Lateral walls
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Circumvallate papilla have keratinized or non-keratinized epithelium?
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Both:
Surface-- keratinized Lateral walls-- non-keratinized |
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What type of glands empty into valley of circumvallate papillae?
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Von Ebners glands
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What is unique about Von Ebners glands?
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Pure serous glands
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Taste buds lie within epithelium of? (3)
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1. Papillae of tongue
2. Pharynx 3. Soft palate |
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How does taste bud open into oral cavity?
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Taste pore
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4 cell types present in taste buds?
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2 types of support (sustentacular cells)
3. Neuro-epithelial cells= Taste cells (gustatory cells) 4. Basal regenerative cells (stem cells) |
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What are neuro-epithelial cells?
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Taste cells (gustatory cells)
Have microvilli & basal secretory vesicles Associated w/ nerves-- sense taste |
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in
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30
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