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32 Cards in this Set
- Front
- Back
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How do sublingual glands drain into the oral cavity?
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via SUBMANDIBULAR DUCtS
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What are the 4 Tonsils found in the oral and nasal cavities?
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Palatine tonsils
Tubal tonsils Pharyngeal tonsils Lingual tonsils |
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Describe Masticatory Mucosa
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keratinized => lack STRATUM LUCIDUM
or PARAkeratinized (pyknotic nuclei) => lack STRATUM GRANULOSUM LAMINA PROPRIA => papillary layer => reticular layer |
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In what layer do you have MEISSNER'S CORPUSCLES in the masticatory mucosa?
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Papillary Layer of the Lamina Propria
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The term used for where the mucosa (epithelium + lamina propria) attaches directly to the periosteum of the underlying bone without an intervening submucosa
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Mucoperiosteum
ex: Midline of Hard Palate (palatine raphe) ex2: attached gingiva |
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The term used for when present in the hard palate contains adipose tissue anteriorly, mucous glands posteriorly, collagen fibers extend from mucosa to bone.
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Submucosa
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What are the 3 layers of epithelium found in LINING MUCOSA?
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Stratum Superficiale
Stratum Spinosum Stratum Basale |
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Occasional sebaceous glands not associated with hair follicles are called?
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Fordyce Spots
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What are the 4 types of Papillae found on the tongue?
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Filliform
Fungiform Foliate Circumvallate |
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Describe the FILIFORM papillae
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smallest and MOST NUMEROUS
no taste buds cover entire surface of tongue in rows pointing backwards KERATINIZED STRATIFIED SQUAMOUS mechanmical role |
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Describe Fungiform papillae
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mushroom shaped
must abundant near tip of tongue CONTAIN TASTE BUDS dorsal surface has stratified epithelium |
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Describe Circumvallate papillae.
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Largest Papillae
8-12 in number has a moat lined with stratified squamous epithelium -- contains NUMEROUS TASTE BUDS ducts of von Ebner's glands (lingual salivary glands) empty into moat |
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Describe Foliate papillae
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found on parallel ridges separated by deep clefts--right angles to long axis of tongue
CONTAIN NUMEROUS TASTE BUDS SEROUS GLANDS empty into clefts |
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What type of glands empty into the clefts of Foliate papillae?
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Serous glands
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What are the 3 cell types found in Taste Buds?
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neuroepithelial / sensory cells
supporting cells basal cells (STEM CELL) |
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Through what type of junction do neuroepithelial / sensory cells attach to neighboring taste cells?
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Tight junction
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Of the 3 types of cells found in Taste Buds, which of them contain microvilli?
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Supporting cells
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The outer surface of the root of the tooth is covered by ?
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Cementum
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True or False
Enamel is acellular and cannot be remodeled or replaced and contains no collagen. |
True
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What type of cell secretes enamel?
What type of embryonic tissue does it arise from? |
Ameloblasts
Oral Ectoderm |
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What type of cell creates DENTIN?
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Odontoblasts
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The PRE-DENTIN that is newly secreted unmineralized dentin contains ? and ?
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Dentin Phosphoprotein (DPP)
Dentin Sialoprotein (DSP) |
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What serves as attachment for the periodontal ligaments (sharpey's fibers) ?
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Cementum
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Periodontal Ligaments (Sharpey's fibers) attach to ? and ?
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Cementum (tooth)
Alveolar bone |
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Term that is used to describe an acinus with its associated intercalated duct and excretory duct.
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SALIVON
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Cells that have large amounts of RER, free ribosomes, prominent Golgi apparatus, numerous secretory granules (zymogen granules)
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Serous Cells
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Contractile cell with numerous processes and is found between epithelial cells and basal lamina and surround the proximal portion of the duct system.
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Myoepithelial Cells
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The duct system is formed up of what 3 sequential segments.
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Intercalated Duct
Striated Duct Excretory Duct |
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What type of activity do INTERCALATED DUCTS have?
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carbonic anhydrase
-secrete HCO3- -absorb Cl- |
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Describe striated ducts
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basal infoldings of cells along with mitochondria cause "striation"
reabsorb Na+ from saliva secrete K+ and HCO3- into saliva Located within lobules |
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Describe excretory ducts
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principal ducts of major salivary glands
drain to oral cavity |
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Saliva contains what type of enzyme secreted by serous demilune that help destroy bacteria?
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Lysozyme
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