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68 Cards in this Set
- Front
- Back
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What type of epithelia is found in the mucosa of the hard palate?
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keratinized stratified squamous epithelium
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Please describe the submucosa of the hard palate.
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the submucosa of the hard palate has fat anteriorly and glands posteriorly
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What makes up the lining mucosa of the oral cavity?
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The soft palate and cheeks
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What is the type of epithelia in the mucosa of the soft palate?
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Parakeratinized SSE is the type of epithelia in the mucosa of the soft palate
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What does the hard palate overlay?
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the hard palate overlays BONE
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Does the soft palate have more or less papillae than the hard palate?
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The soft palate has less papillae that the hard palate. The papillae also happen to be shorter
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What does the soft palate overlay?
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The soft palate overlays striated muscle.
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What tye of glands are found in the lips?
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labial glands are found in the lips
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Does the Vermilion border have glands?
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No... dry and dusty...
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What type of muscle is found in the lip?
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circular skeletal muscle
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what is a technical name for the circular skeletal muscle found in the lip?
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orbicularis oris is another name for the circular skeletal muscle found in the lip.
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Where would one find specialized mucosa?
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The papillae on the dorsal surface of the tongue and taste buds
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Name three functions of the tongue
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Motor, protection, sensory
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How many directions are the muscles of the tongue arranged in?
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Three directions.
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sulcus treminalis divides which regions of the tongue?
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The sulcus terminalis divides the papillary region from the tonsillar region
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What is the foramen cecum?
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The foramen cecum is the depression at the root of the tongue which is the termination point for the median sulcus. Thank you wikipedia.
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Name the four types of papillae found in the anterior 2/3rds of the tongue.
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Filiform, fungiform, circumvallate, foliate
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What papillae does not contain tastebuds?
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Filiform
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What papillae has von Ebner's glands?
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Circumvallate
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I say, lateral infoldings you say...
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foliate papillae
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what is the most numerous papillae?
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filiform
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what type of epithelium make up filiform papillae?
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keratinized SSE
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What papillae has tastebuds on it's apical surface?
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Fungiform
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What nerve fibers are in tastebuds?
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VII IX and X
7 9 10 |
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Do tastebuds have basal cells?
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Yes! Tastebuds have basal cells (stem cells)
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What are the four components of taste buds?
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Sensory Cells (neuroepithelial cells)
Supporting Cells Basal Cells (stem cells) Nerve fibers (vii ix x) |
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5 flavors???
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chocolate cherry.. i mean
sweet salty bitter acid umami |
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What are the three types of major salivary glands?
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Parotid
Submandibular Sublingual |
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Parotid are what type of gland? (serous or mucous)
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serous
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Submandibular are MOSTLY what type of gland?
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Mostly SEROUS
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Sublingular glands are MOSTLY what type of gland?
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Mostly MUCOUS
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What are the largest glands?
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Parotid
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What is a acinus?
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an acinus is a blind sac of secretory cells
it also refers to the secretory unit of salivary glands |
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What is a serous demilune?
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a preparation artifact that can be eliminated by rapid freezing of the salivary gland
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What contactile cell embraces the basal aspect of the acinar secretory cells?
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myoepithelial cells embrace the basal aspect of acinar secretory glands
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What are the components of the salivon?
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acinus---intercalated duct---striated duct---excretory duct
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True or False:
Mucous glands have well developed intercalated ducts and striated ducts? |
FALSE
mucous glands have poorly developed intercalated and striated ducts. |
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What duct in the salivary glands is involved in Na absorption and k secretion
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the strated ducts
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What do the excretory ducts of the salivary glands connect to?
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Excretory ducts of the salivary glands connect to the oral cavity
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What type of epithelium is in excretory ducts of the salivary glands?
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psuedo stratified columnar
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What is poorly developed in sublingual glands?
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intercalated and striated ducts
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Where are the minor glands located?
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In the submucosae of the palated tongue lips and cheeks
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What is EGF?
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Epidermal growth factor
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What are some functions of saliva
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Wound healing
digestion moistening maintenance of teeth anti-viral (anti-HIV) antibacerial immunological protection |
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Functions of teeth
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chewing
speech hunting/fighting ??Cosmetic beauty?? |
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What are deciduous teeth also known as?
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Baby teeth
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How many deciduous teeth do you have?
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20
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How many permanent teeth do you have?
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28-32
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What is the clinical crown?
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The portion of the tooth appearing above the gums is the clinical crown.
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What is the anatomical crown?
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The portion of the tooth covered by enamel is the anatomical crown.
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What portion of the tooth is anchored to the alveolar bone?
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The root of the tooth is anchored to the alveolar bone.
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What is the bulk of the tooth?
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Dentin
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Describe the composition of dentin.
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70% hydroxyapatite 30% organic type I collagen
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What produces dentin?
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Odontoblasts
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What are dentin tubules?
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Channels that radiate through the Dentin from the pulp to the enamel or cementum. Contain fluid and cellular structures.
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Can enamel be replaced?
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No enamel can not be replaced?
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What percentage of enamel is inorganic material?
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96% of enamel is inorganic material
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What is the inorganic material in enamel?
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hydroxyapatite crystals!!!
HYDROXYAPATITE CRYSTALS |
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What produces enamel???
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Ameloblasts produce enamel.
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Can enamel be replaced?
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No, enamel can not be replaced.
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What is cementum?
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Cementum is the covering of dentin in the root region.
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What is the composition of cementum?
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Cementum is 50% organic (collagen and ground substance) and 50% inorganic material.
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What cell produces cementum?
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cementocytes from cementoblasts produce cementum
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Do cementocytes communicate via gap junctions??
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NO
cementocytes do not communicate via gap junctions. |
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Are cementocytes found in lacunae?
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Yes
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Where are blood vessels and nerves found in the tooth?
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Blood vessels and nerves are found in the pulp of the tooth
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Lymphocytes and firbroblasts in the pulp are found in the...
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loose connective tissue
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What are the functions of the dental pulp?
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Dental pulp serves as a nutritional source for the odontoblasts, as pain receptors, and are protective. (inflammatory response
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