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19 Cards in this Set
- Front
- Back
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Chondrocraniums vs. Cranial Vault vs. Viscerocranium
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Chondrocrainum = endochondrial ossification
Vault = membranous ossification Viscerocranium = both + Neural crest |
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Arch 1
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Meckel's Cartilage, malleus, incus, mm of mastication, V2 and V3
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Arch 2
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Stapes, Styloid process, lesser horn of hyoid, mm of facial expression, VII
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Arch 3
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greater horn and body of hyoid, stylopharyngeus, IX
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Arch 4
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upper part of thyroid cartilage, pharyngeal constrictors, levator veli palantini, crycothyroid, X (superior laryngeal branch)
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Arch 6
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lower thyroid cartilage, cricoid cartilage, intrinsic laryngeal mm, X (recurrent laryngea branch)
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Pouch 1
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auditory tube and middle ear
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Pouch 2
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immune cells populate here to form the palantine tonsil
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Pouch 3 + 4
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endoderm becomes parathyroid, T cells migrate between to form thymus
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Pouch 5
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Neural crest migrate here to form C cells of thyroid
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Cleft 1
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external auditory meatus
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Cleft 2, 3, 4
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form cervical sinus that eventually regresses (if not, it forms a cervical cyst on the ant of the SCM)
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When does the Ant fontanelle close
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1.5 years
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When does the post Fontanelle close?
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3 months
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Lateral Nasal Process
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nares of nose
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Medial Nasal process
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philtrum of lip, primary palate
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Maxillary Prominence
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upper lip and cheeks, palantine shelves that form the secondary palate
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Dentin of Teeth
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Neural crest derived
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Enamal of Teeth
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enamalblasts from epithelium
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