hough embryo 1 Flashcards

1
Q

trigeminal nerve

A

1st arch

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2
Q

muscles of mastication- BONUS- what are they

A

1st arch
temporalis, masseter, medial pterygoid, lateral pterygoid

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3
Q

mylohyoid m.

A

1st arch

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4
Q

anterior belly of digastric m.

A

1st arch

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5
Q

cartilage of maxillary process

A

1st arch

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6
Q

cartilage of mandibular process

A

1st arch

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7
Q

anterior ligament of malleus

A

1st arch

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8
Q

spenomandibular L.

A

1st arch

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9
Q

maxillary artery

A

1st arch

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10
Q

anterior 2/3 of tongue

A

1st arch

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11
Q

facial nerve

A

2nd arch

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12
Q

muscles of facial expression

A

2nd arch

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13
Q

bonus: what are the muscles of facial expression - hint 8

A

posterior bellly of digastric
buccinator
auricularis
frontalis
platysma
orbicularis oculi
stylohyoid
stapedius

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14
Q

reichert cartilage

A

2nd arch

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15
Q

stapedial artery

A

2nd arch

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16
Q

hyoid artery

A

2nd arch

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17
Q

posterior 1/3 of tongue

A

2nd arch

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18
Q

glossopharyngeal N

A

3rd arch

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19
Q

stylopharyngeus m

A

3rd arch

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20
Q

greater horn b

A

3rd arch

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21
Q

lower part of hyoid b

A

3rd arch

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22
Q

cartilage of greater horn and lower part of body

A

3rd arch

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23
Q

common carotid a

A

3rd arch

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24
Q

proximal part of internal carotid a

A

3rd arch

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25
Q

superior laryngeal branch

A

4th arch

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26
Q

cricothyroid m

A

4th arch

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27
Q

levator veli palatini

A

4th arch

28
Q

constrictors of pharynx

A

4th arch

29
Q

laryngeal cartilage

A

4th arch

30
Q

right subclavian a

A

4th arch

31
Q

aorta a.

A

4th arch

32
Q

vagus n

A

4th arch

33
Q

recurrent/ inferior laryngeal branch

A

6th arch

34
Q

intrinsic m. of larynx

A

6th arch

35
Q

external auditory meatus

A

1st pharyngeal cleft

36
Q

temporary cervical sinus

A

2-4 pharyngeal cleft

37
Q

a pharyngeal (brachial cyst) is because the _____ fails to obliterate completely

A

2nd phayngeal cleft

38
Q

medial swelling/ copula

A

2,3, anterior 4 arch

39
Q

2 lateral swellings and 1 medial swelling

A

1st arch

40
Q

median swelling/ epiglottis

A

posterior 4 arch

41
Q

tympanic cavity (middle ear)

A

1st pharyngeal pouch

42
Q

auditory tube (eustachian tube)

A

1st pharyngeal pouch

43
Q

epithelial libing of palatine tonsils and tonsillar fossa

A

2nd pharyngeal pouch

44
Q

inferior parathyroids

A

dorsal win 3rd pharyngeal pouch

45
Q

thymus gland

A

ventral wing 3rd pharyngeal pouch

46
Q

superior parathyroids

A

dorsal wings 4th pharyneal pouch

47
Q

ultimobrachial body- parafollicular [c] cells of thyroid gland

A

ventral wing 4th pharyngeal pouch

the cells themselves come from NCC

48
Q

pt has insufficient migration of NCC into the 1st arch

A

treacher collins

49
Q

pt presents with an overbite, retrusive chin & jaw, external ear abnormalities , maar hypoplasia

A

treacher collins

50
Q

pt 1st arch structures are altered

A

pierre robins sequence

51
Q

pt presents with hypoplasia of mandible, the tongue is drawn down, micrognathia, glossoptosis

A

pierre robins

micrognathia- low jaw undersized

glossoptosis- tongue too far back

52
Q

pt has underdeveloped thymus, hypoparathyroidism, and congential heart defects

A

digeorge syndrome

53
Q

migration errors of 3rd and 4th pouches- tissues end up in abnormal places

A

ectopic/ abberant parathyroid/thymic tissues

54
Q

ectopic parathyroid

A

may end up in neck/chest- can cause persistent hypothyroidism if not removed

55
Q

ectopic thymus

A

no symptoms- but can lead to mass in neck that compress trachea and esophagus

56
Q

incomplete fusion of lateral lingual sweeling resulting in bifid tongue

A

glossoschissis

57
Q

excessively large tongue caused by general hypertrophy

A

macroglossia

58
Q

frenulum is short and extends to tip of tongue

A

ankyloglossia

59
Q

thyroid gland

A

does not come from pharyngeal pouches

60
Q

failure of thyroid primordium to migrate completely - accessory tissue is found along thryglossal duct

A

ectopic thyroid

61
Q

thyroid gland has developed but fails to develop

A

sublingual thyroid gland

62
Q

pt has a cyst in the tongue or anterior neck due to persistent duct

A

thryoglossal duct cyst

63
Q

how to tell difference between thryoglossal duct cyst and ectopic thyroid

A

thyroglossal- has movement during swallowing and is in a midline position

64
Q

absence of thyroid

A

agenesis

65
Q

unilateral absence of thyroid; affects left lobe

A

hemiagenesis

66
Q

pt has decrease in thyroid hormones, increase TSH levels, CNS development and lung development are affected

A

congential hypothyroidism