Embryology Flashcards

1
Q

Muscles of mastication

A

1st arch

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2
Q

CN V2 and V3

A

1st arch

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3
Q

Meckel’s cartilage: mandible, malleus, incus, spheno-mandibular ligament

A

1st arch

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4
Q

Stapes, styloid process, stylohyoid ligament, lesser horn of hyoid

A

2nd arch

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5
Q

muscles of facial expression

A

2nd arch

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6
Q

CN VII

A

2nd arch

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7
Q

greater horn of hyoid

A

3rd arch

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8
Q

stylopharyngeus muscle

A

3rd arch

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9
Q

CN IX

A

3rd arch

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10
Q

thyroid, cricoid, arytenoids, corniculate, cuneiform

A

4th-6th arch

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11
Q

pharyngeal constrictors, cricothyroid, levator veli palatini

A

4th arch

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12
Q

all intrinisic muscles of larynx

A

6th arch

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13
Q

CN X (superior laryngeal branch)

A

4th arch

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14
Q

CN X (recurrent laryngeal branch)

A

6th arch

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15
Q

develops into middle ear cavity, eustachian tube, mastoid air cells

A

1st pouch

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16
Q

epithelial lining of palatine tonsil

A

2nd pouch

17
Q

inferior parathyroids and thymus

A

3rd pouch (dorsal wings=inferior parathyroids, ventral wings=thymus)

18
Q

superior parathyroids

A

4th pouch

19
Q

develops into external auditory meatus

A

1st cleft

20
Q

temporary cervical sinuses

A

2-4 clefts

21
Q

persistent cervical sinus

A

branchial cleft cyst within lateral neck