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Embryology-structurest2

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ibench85lbs's version from 2016-07-22 20:15

Section

 

brain

Question Answer
Telen'cCerebrum, Basal ganglia
Dien'cThalami, retina, neurohypophysis (3rd ventricle)
Mesen'cMidbrain (aqueduct)
meten'cPons (aqueduct), cerebellum (4th ventricle)
myelen'cMedulla (4th ventricle)
conus medullarisat birth - L3, adult - L1
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Section

branchial arches

Question Answer
1V. chewing. (mandible, malleus, incus) (mastication, mylohyoid, tensor tympani) (max a)
2VII. facial expression (stapes, styloid process, hyoid) (facial expression, stapedius) (stapedial a, hyoid a)
3IX. stylopharyngeus (greater horn of hyoid) ( stylopharyngeus)
4X. swallow (cricothyroid, pharyngeal constrictors) (posterior tongue)
6X. speaking (intrinsic larynx, except cricothyroid)
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branchial pouches

Question Answer
1middle ear, eustachian, mastoid air cells
2palatine tonsil
3Dorsal - inferior parathyroid, ventral - thymus
4dorsal - superior parathyroids
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ear derivatives

Question Answer
malleus/incus, tensor tympani1st arch
stapes, stapedius2nd arch
external aud meatus1st cleft
tympanic membrane1st membrane
eustachian, middle ear cavity, mastoid air cells1st pouch
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stages of lung dev't

Question Answer
glandular5-6
canalicular13-25. resp bronchioles, terminal sacs. rarely survive < 20 wk
terminal sacT 1, 2 pneumocytes. respiration possible
alveolarbirth - 8 yr. resp bronchioles, terminal sacs, alveolar ducts, alveoli increase numbers
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