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96 Cards in this Set
- Front
- Back
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lips, cheeks, hard palate, soft palate, tongue, teeth
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oral cavity
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the oral cavity is lined by _____________ epithelium
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stratified squamous (can be keratinized or non-keratinized)
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near the ____________, the skin is devoid of hair follicles and is thicker
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muco-cutaneous junction in the lips
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keratinized lip mucosa
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ruminants and horses
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non-keratinized lip mucosa
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carnivores and pigs
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labial glands (serous or seromucous) distributed in the propria-submucosa
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lips (distributed in the propria-submucosa)
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skeletal muscle fibers of the orbicular is oris muscle
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tunica muscularis of lips
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buccinator muscle
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middle muscle layer of cheeks
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conical buccal papillae
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cheek mucosa of ruminants
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buccal glands (serous, mucous, or seromucous)
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cheeks (distributed in the propria-submucosa)
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the vestibule portion of the oral cavity
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between cheek and teeth
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rugae
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transverse ridges of the hard palate mucosa
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in the cheeks, the mucosa is _____________________
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stratified squamous epithelium which may or may not be keratinized
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thick keratinized stratified squamous epithelium
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hard palate mucosa
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particularly thick hard palate mucosa
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ruminants
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dense network of capillaries, collagen fibers, and reticular fibers in the propria-submucosa
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hard palate
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heavily keratinized stratified squamous epithelium overlying a thick layer of dense irregular connective tissue
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dental pad
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dental pad
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ruminants
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branched, tubuloacinar, mucous or seromucous palatine glands and lymphatic tisses
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propria-submucosa of soft palate
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palatine muscles (longitudinally arranged skeletal muscle fibers)
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soft palate
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keratinized on the dorsal surface and non-keratinized on the ventral surface
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tongue
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abundance of capillaries and arteriovenous anastamoses which participate in thermoregulation
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mucosa of the tongue
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intrinsic lingual muscles (skeletal muscles arranged in longitudinal, transverse, & perpendicular directions)
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tongue
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lingual glands (seromucous)
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scattered between the muscle fibers of the tongue
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lingual papillae
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dorsal surface of the tongue
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torus linguae
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prominent bulging in the caudal half of the ruminant tongue
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filiform, conical, lenticular, fungiform, vallate, and foliate papillae
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types of lingual papillae
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filiform, conical and lenticular papillae
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lingual papillae serving a mechanical function
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fungiform, vallate and foliate papillae
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lingual papillae serving a gustatory function (have taste buds)
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keratinized, slender, thread-like structures with a highly vascular CT core, projecting above the surface of the tongue
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filiform papillae
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well developed filiform papillae
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ruminants & cats
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filiform papillae which are very fine threads
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horses
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papillae which are larger than filiform, but less keratinized
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conical lingual papillae
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conical lingual papillae in dogs, cats & pigs
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present on the root of the tongue
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conical lingual papillae in ruminants
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present on the torus linguae
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conical lingual papillae are not found in _______
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horses
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conical lingual papillae with a lymphatic tissue core
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pigs
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keratinized, flattened, lens-shaped projections with a core of dense irregular connective tissue
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lenticular papillae
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lenticular papillae
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found on torus linguae in ruminants (only found in ruminants!)
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non-keratinized, mushroom-shaped projections with taste buds on ______ surface and a CT core rich in blood vessels and nerves
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fungiform papillae (upper surface)
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fungiform papillae with sparse taste buds
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horses &cattle
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fungiform papillae with numerous taste buds
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pigs & sheep
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fungiform papillae with most abundant taste buds
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carnivores & goats
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non-keratinized, large, flattened structures extending only slightly over lingual surface, surrounded by an epithelium lined sulcus, with a CT core rich in blood vessels and nerves
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vallate papillae
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numerous taste buds occur in the epithelium on the _______ side of the sulcus in vallate papillae
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papillary (lateral) side
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serous gustatory glands
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deep to the sulcus with ducts opening into the sulcus in vallate papillae
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stratified parallel folds of lingual mucosa on the caudo-lateral margin of the tongue with taste buds located on the side of the folds
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foliate papillae
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foliate papillae are absent in ________
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ruminants
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rudimentary foliate papillae lacking taste buds
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cats
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a cluster of spindle-shaped epithelial cells extending from the basement membrane to a small pore at the epithelial surface
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taste buds (the pore is called the "taste pore")
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sustentacular (supportive) cells, gustatory (taste receptor) cells, basal cells
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taste buds
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closely associated with gustatory cells, are ___________________
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non-myelinated, afferent nerve fibers
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a cordlike structure composed of white adipose tissue, skeletal muscles, blood vessels, nerves, and enclosed by a dense irregular CT capsule
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lyssa
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lyssa
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in the tongue of carnivores
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mid-dorsal fibroelastic cord with hyaline cartilage, skeletal muscle, and white adipose tissue
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dorsal lingual cartilage
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dorsal lingual cartilage
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inside the tongue of horses
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enamel, dentine, cementum, pulp cavity
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teeth
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99% inorganic, 1% organic (the hardest substance in the body)
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enamel
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70% inorganic, 30% organic
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dentine
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66% inorganic, 33% organic
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cementum (similar to bone composition!)
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dental pulp with a core of connective tissue, blood vessels, and nerves
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pulp cavity
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ameloblasts produce
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enamel
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odontoblasts produce
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dentine
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cementoytes produce
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cementum
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composed of lamellae oriented parallel to the surface of the tooth
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cementum
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collagen fibers extending from alveolar bone into cementum of tooth
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cemento-alveolar (Sharpey's) fibers
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cemento-alveolar (Sharpey's) fibers fibers form ____________ which anchors the tooth in the alveolus
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the periodontal ligament
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short teeth which cease to grow shortly after eruption is completed; have a crown, neck, and root
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brachydont teeth
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brachydont teeth
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all teeth of carnivores and the incisors of ruminants
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long teeth which continue to grow throughout life; do not have a crown or neck
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hypsodont teeth
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hypsodont teeth
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cheek teeth of ruminants, all permanent teeth of horses, and the canine teeth of pigs
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teeth having an infundibulum (enamel invagination)
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hypodont teeth
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parotid, mandibular, sublingual, and zygomatic glands
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major salivary glands
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zygomatic salivary glands
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carnivores
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labial, lingual, buccal, palatine and molar glands
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minor salivary glands
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molar salivary glands
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cats
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the parotid gland is predominantly __________, and structurally a ______________
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serous, compound acinar gland
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intercalated duct of salivary gland is lined by ________
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low cuboidal epithelium
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striated duct of salivary gland is lined by ________, with characteristic __________ in the basal portion of the cells
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simple columnar epithelium, striations
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the striations of striated ducts result from perpendicularly oriented ____________ in the deep infolding of the basal cells membrane
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mitochondria
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interlobular duct of salivary gland is lined by ________, which changes to _________ as ducts become larger
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simple columnar epithelium, stratified columnar epithelium
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mandibular salivary gland is ___________, and structurally a ____________
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seromucous, compound tubuloacinar gland
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serous demilunes discharge their secretions through _________
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intercellular canaliculi
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the main duct of the sublingual salivary gland is lined by __________
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stratified cuboidal epithelium
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sublingual salivary glands are _______, and structurally a ____________
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seromucous, compound tubuloacinar gland
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zygomen granules
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apex of parotid salivary gland acinus
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the main duct of the sublingual salivary gland is lined by __________
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stratified cuboidal epithelium
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sublingual salivary gland which is almost entirely mucous with relatively few serous demilunes
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cattle, sheep, pigs
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mucinogen
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found in cells of the mucous secretory unit of mandibular salivary gland
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sublingual salivary glands containing clusters of serous acini in additional to typical mucous and serous demilunes
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dogs and cats
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serous demilunes discharge their secretions through _________
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intercellular canaliculi
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striated and intercalated ducts in sublingual salivary glands are well developed in ________
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horses, ruminants, and pigs
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striated and intercalated ducts in sublingual salivary glands are not prominent in __________
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dogs and cats
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zygomatic salivary glands are predominantly _________, and structurally are ____________; intercalated and striated ducts are almost nonexistent
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seromucous, long branched tubuloacinar secretory units
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zygomatic salivary glands
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only in carnivores! (dogs and cats)
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molar salivary glands
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only in cats!
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