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18 Cards in this Set
- Front
- Back
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primitive gut has three parts within embryo
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fore-gut
mid-gut hind-gut |
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derived from fore-gut
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part of the mouth
pharynx esophagus stomach liver and pancreas major portion of the small intestine thyroid parathyroid thymus gland trachea and lungs |
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derived from hind-gut
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terminal end of the small intestine
large intestine cloaca |
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development of mouth
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cranial and cephalic flextures
lateral body folding stomodaeum oral plate- pharyngeal membrane which is the fusion of ectoderm and stomodeaum and enoderm of the fore-gut result: epithilium of mouth-ectodermal |
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branchial arches
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branchial arches (pharyngeal arches) which are fleshy mesenchymal swellings derived from the neural crest-neuroectoderm
derivates of arches contribute to head and neck |
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1st branchial arch
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left and right maxilliary process
left and right mandibular process elongation of these processes form the oral cavity |
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fronto-nasal prominence
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paired mesenchymal processes seperated by a groove
give rise to : frontal process |
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upper jaw
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naso medial and maxillary process
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nose
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frontal process and naso-lateral process
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lower jaw
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fusion of the mandibular process
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naso-lacrimal duct
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naso-lateral process and maxillary process
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palate derived from
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late palatine process
right palatine process median palatine process |
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development of tongue
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arises from floor of pharynx
mesenchymal swellings: 1. median tongue swelling 2. two distal tongue swellings 3. proximal tongue swelling |
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development of body cavities
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pericardial coelom
left/right pleural canals peritoneal coelom |
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cloacal membrane
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endoderm/ectoderm
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function of digestive system
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Securing food
Conducting and storing food Mechanical and chemical digestion Absorption of food |
