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49 Cards in this Set
- Front
- Back
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persistent portion of vitelline duct
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meckels diverticulum
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patent duct through entire length
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vitelline duct fistula
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ends close but middle portion is intact
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vitelline duct cyst
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herniation of viscera in umbilical ring
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omphalocele
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failure of retraction of intestinal loops from herniation
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omphalocele
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herniation of abdominal contents in amniotic cavity
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gastroschisis
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danger of vascular or loop obstruction
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abnormal rotations
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only 90 degrees
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colon & cecum retract first and lie on left
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reverse 90 clockwise
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transverse colon behind duodenum
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most common in duodenum & ileum
failure of recanalization or vascular failure |
atresia & stenosis
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incomplete formation of hindgut
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rectal atresia
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imperforate anus
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rectal atresia
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associated with neural anomalies-- absence of parasymp ganglia
involves rectum & colon |
congenital megacolon-- hirschsprungs disease
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underdeveloped zygomatic bones
poorly developed mandible lower eyelid defects deformed external ear & sometimes middle & inner ears |
Treacher collins
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hypoplasia of mandible
cleft palate eye & ear defects |
pierre robin
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what anomaly is normally caused by failure of neural crest to migrate?
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first arch syndromes
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what syndromes deal with the 1st arch?
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pierre robin & treacher collins
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what does 3rd & 4th pouch syndrome have to deal with?
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digeorge sequence
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hypoplasia of thymus & parathyroid glands
cardiac anomalies malformed mouth |
digeorge sequence
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tongue-tie
extended frenulum |
ankyloglossia
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remnant of thyroglossal duct
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thyroglossal cyst/fistula
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cleft lip, upper jaw and cleft b/w primary & secondary palate
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anterior cleft
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partial fusion of max prominence with medial nasal prominence
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anterior cleft
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cleft secondary palate
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posterior cleft
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lack of fusion of palatine shelves
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posterior cleft
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failure of max prominence with lateral nasal prominence
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oblique facial cleft
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exposed nasolacrimal duct
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oblique facial cleft
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failure of fusion of medial nasal prominences
often with neural defects |
medial cleft
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intraretinal space
neural layer pigment layer |
3 layers of posterior 4/5 of optic cup
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posterior 4/5 of optic cup also known as
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pars optica retinae
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anterior 1/5 of optic cup, aka
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pars ceca retinae
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intraretinal space
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what is the weakest part in the adult?
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what layer has rods & cones?
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neural layer
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sclera
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dura matter
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coroid
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pia matter
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what forms lens vesicle?
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lens placode
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instrinsic mm of eye are in the?
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iris
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absorbs light in the eye so not reflected back?
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pigment layer
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cataracts?
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opague
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coloboma iridis
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choroid fissures fail to close
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2 portions of otic vesicle?
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ventral & dorsal
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what is involved in hearing?
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ventral portion
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what is involved in balance?
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dorsal portion
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CN 8
vestibulocochlear n. |
innervates the otic vesicle?
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auricle
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tragus- arch 1
most auricle is from arch 2 |
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from neck to final location as mandible develops
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how auricles develop?
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endoderm of tympanic membrane
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pouch 1
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ectoderm tympanic membrane
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cleft 1
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what is the transparent part of eye?
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cornea
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