NWHSU Mash GA 2 Quiz 4 Embryology Face and Skull
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| In the lateral cleft upper jaw, where is cleft exactly located? | between incisors and cuspids
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| Specifically, what is the cause of a) median cleft lip b) oblique facial cleft | a) failure to fuse medial nasal swellings b) failure to fuse lateral nasal and maxillary swellings
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| What embryonic structure forms the alae of the nose? | lateral nasal swellings
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| What specific embryonic processes fail to fuse in cleft of secondary palate? | palatine shelves of maxillary process
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| Name two components that develop from the intermaxillary segment | philtrum of upper lip, middle part of maxilla, entire primary plate
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| What does each of the following form in the adult? a) occipital fontanelle b) anterolateral fontanelle c) anterior fontanelle d) posteriolateral fontanelle | lambda, pterion, bregma, asterion
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| The cranial capacity of the skull increases until age ____, but most of its capacity is achieved by age ___ | 15-16, 5-7
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| The developing skull is divided into 4 subdivisions based on location and ossification. Name the subdivision. | membranous neurocranium, membranous viscerocranium, cartilagenous neurocranium, cartilagenous viscerocranium
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| Name the specific embryonic cartilage which forms the following a) inner part of the greater wing of sphenoid b) body of ethmoid c)occipital clivus and tectum mastoid part of the temporal bone d) body of sphenoid | ala temporalis, trabeculae cranii, occipital scleratomes, hypophyseal cartilages
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| Name the components formed from the following a) ala temporalis b) periotic capsule | a) inner part of greater wing of sphenoid b) petrous and mastoid portions of temporal bone
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| List four components of the membranous viscerocranium. | maxilla, mandible, nasal, lacrimal
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| List the four components of the membranous neurocranium. | frontal bone, parietal bone, occipital bone above superior nuchal line, squamous part of temporal bone, outer distal part of greater wing of sphenoid
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| Anomaly of skull in which sagittal suture fuse prematurely | scaphocephaly
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| Anomaly of skull in which roof of cranial vault is unclosed | cranioschisis
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| Anomaly of skull in which there is premature closure of one or more sutures | Craniostenosis (craniosynostosis)
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| Anomaly of skull in which the coronal and/or lamboidal suture closes prematurely on one side only, skull becomes twisted and asymmetrical in shape. | plagiocephaly
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