Embryological Derivatives (Endo, Ecto, Mesoderm)
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| adenohypophysis (rathke's pouch) | surface ectoderm
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| lens of eye | surface ectoderm
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| epithelial lining of oral cavity | surface ectoderm
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| sensory organ of ear, retina, and olfactory epithelium | surface ectoderm
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| epidermis | surface ectoderm
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| salivary, sweat, and mammary glands | surface ectoderm
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| neurohypophysis | neuroectoderm (makes brain in general)
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| CNS neurons | neuroectoderm (makes brain in general)
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| oligodendrocytes | neuroectoderm (makes brain in general)
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| astrocytes | neuroectoderm (makes brain in general)
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| ependymal cells | neuroectoderm (makes brain in general)
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| pineal gland | neuroectoderm (makes brain in general)
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| retina | neuroectoderm (makes brain in general)
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| spinal cord | neuroectoderm (makes brain in general)
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| ANS | neural crest
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| neural crest | ANS, dorsal root ganglia, cranial nerves, celiac ganglion, melanocytes, chromaffin cells, enterochromaffin cells, parafollicular (C) cells of thyroid, schwann cells, pia and arachnoid, bones of skull, odontoblasts, laryngeal cartilage, aorticopulm septum
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| dorsal root ganglia | neural crest
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| cranial nerves | neural crest
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| bones of skull | neural crest
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| melanocytes | neural crest
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| celiac ganglia | neural crest
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| chromaffin cells of adrenal medulla | neural crest
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| enterochromaffin cells | neural crest
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| odontoblasts | neural crest (think "CREST toothpaste for teeth")
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| parafollicular C cells of thyroid | neural crest
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| schwann cells | neural crest
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| pia | neural crest
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| arachnoid | neural crest
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| laryngeal cartilage | neural crest
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| aorticopulmonary system | neural crest
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| In general: neural crest is ___ nervous system and non-____ structures nearby | peripheral (PNS), non-neural structures nearby
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| Neuroectoderm: in general, ___ nervous system and ___ | central (CNS)and brain
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| Endoderm | gut tube epithelium and derivatives (liver, lungs, pancreas, thymus, parathyroid, thyroid follicular cells)
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| gut tube epithelium | endoderm
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| liver | endoderm
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| pancreas | endoderm
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| lungs | endoderm
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| thymus | endoderm
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| follicular cells of thyroid | endoderm
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| parathyroid gland | endoderm
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| mesoderm | muscle, bone, CT, serous linings (e.g. peritoneum), spleen (foregut mesentery), cardiovascular structures, lymphatics, blood, urogenital structures, kidney, adrenal cortex
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| muscle | mesoderm
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| bones | mesoderm
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| connective tissue | mesoderm
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| spleen | mesoderm (foregut mesentery)
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| cardiovascular structures | mesoderm
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| kidneys | mesoderm
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| urogenital structures | mesoderm
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| blood | mesoderm
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| lymphatics | mesoderm
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| adrenal cortex | mesoderm
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| notochord - what it do? | induces ectoderm to form neuroectoderm (neural plate). postnatal derivative is nucleus pulposus of intervertebral disk
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| nucleus pulposus | notochord
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| mesodermal defects | VACTERL: vertebral defects, anal atresia, cardiac defects, tracheo-esophageal fistula, renal defects, limb defects (bone and muscle)
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| serous linings of body cavities | mesoderm
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| craniopharyngioma - defect in what? what kind of tumor? describe it. | benign rathke's pouch tumor with cholesterol crystals and calcifications
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| rathke's pouch tumor with cholesterol crystals and calcifications | craniopharyngioma - benign
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