digestive sy 1
TRANSCRIPT
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Recommended addresses:
http://www.med.muni.cz/histol/Sylabus-zahr.rtf
http://www.med.muni.cz/histol/vseob2pda.rtf
http://www.med.muni.cz/histol/atlas.htm
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DEVELOPMENT OF THE DIGESTIVE SYSTEM: THE STOMODEUM, THE PRIMITIVE GUT AND THE PROCTODEUM
GENERAL STRUCTURE OF THE ALIMENTARY CANAL
MICROSCOPIC STRUCTURE OF THE ORAL CAVITY: LIP AND CHEEK, TONGUE, PALATE, TOOTH AND SALIVARY GLANDS
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Digestive system consists of:
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DEVELOPMENT OF THE DIGESTIVE SYSTEM: THE STOMODEUM, THE PRIMITIVE GUT AND THE PROCTODEUM
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StomodeumOropharyngeal membrane
Primitive gutforegutmidguthindgut
Cloacal membrane
Proctodeum
ventral mesenteriumdorsal mesenterium
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DERIVATIVES OF THE PRIMITIVE GUT
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GENERAL STRUCTURE OF THE ALIMENTARY CANAL
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MICROSCOPIC STRUCTURE OF THE ORAL CAVITY: LIP AND CHEEK, TONGUE, PALATE, TOOTH AND SALIVARY GLANDS
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Radix linguae
- folliculi linguales = LINGUAL TONSIL
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Dentine
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Enamel
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Periodontal ligament
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Serous acinus
60 – 150 µm in d., narrow lumen
Secretion rich in water, proteins and enzymes
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Mucous tubulus
secretion rich in glycoproteins
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Tubules with lunulae of Gianuzzi (serous demilune)
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• Stomodeum -
• Primitivní střevo
– Přední -
– Střední -
– Zadní -
• Proctodeum -
Přední a postranní stěna ústní dutiny + část obsahu dutiny ústní
Farynx, jícen, žaludek, kraniální oddíldvanáctníku + játra a slinivka břišní+základ dýchacího ustrojí
Kaudální oddíl duodena, jejunum, ileum, caecum+ vzest. a příčné colon
Colon desc., colon sigmoideum + většíčást rekta
Dolní oddíl canalis analis
Deriváty základů pro trávicí trubici
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