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Flashcards in Embryology, etc. Deck (87)
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60

Structure that develop from the 5th pharyngeal pouch?

Ultimobranchial body

61

It makes up the anterior 2/3 of the tongue? (2)

Came from what arch?

  • Lateral lingual swellings
  • Tuberculum impar of His

Both from 1st arch

62

It makes up the posterior 1/3 of the tongue? (2)

It came from what arch?

  • Copula (2nd arch)
  • Hypobranchial eminence (3rd & 4th arch)

63

Connects the thyroid gland to the tongue?

Thyroglossal duct

64

Remnant of thyroglossal duct?

Foramen cecum

65

Large bulge above the stomodeum?

Frontal process

66

Small buds on the sides of the mandibular arch?

Maxillary process

67

Localized thickening of the frontal process develops into?

Nasal placodes

68

With the presence of the nasal pits, the frontal area becomes the?

Frontonasal process

69

It separates the nasal pits from the stomodeum?

Bucco/oronasal membrane

70

Continuous growth of the medial nasal process downward produce a pair of bulge called?

Globular process

71

Gives rise to the upper incisors?

Premaxilla or primary palate

72

2 grooves that separates the maxillary process from the lateral and medial nasal process?

  • Nasooptic groove
  • Bucconasal groove

73

Sebaceous glands trapped in the buccal mucosa during development?

Fordyce spots

74

Which is formed first: dental lamina or vestibular lamina?

Dental lamina!

75

Agents causing congenital defects?

Teratogens

76

Give 2 drugs that can cause congenital defects?

  • Dilantine
  • Retinoic acid

77

Hormone that can induce clefting?

Cortisone

78

Non union of the globular and maxillary process would cause?

Cleft lip

79

Non union of the palatine processes and the inferior nasal septum would cause?

Cleft palate

80

Cleft affecting the hard palate?

Uranoschisis

81

Cleft affecting only the soft palate?

Staphyloschisis

82

Congenital absence of either the upper or lower jaw?

Agnathia

83

Tongue abnormality caused by short and thick lingual frenulum?

Ankyloglossia

84

A condition wherein one side of the face is underdeveloped?

Hemifacial microsomia

86

Medical term for cleft lip?

Cheiloschisis

87

Results from the persistence of the remnants of the primitive streak?

Sacrococcygeal teratoma