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Step 1 Review > Embryology > Flashcards

Embryology Flashcards

1
Q

Which aortic arch? Maxillary artery

A

1st

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2
Q

Which aortic arch? Carotid Artery

A

3rd

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3
Q

Which aortic arch? Aortic arch

A

4th

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4
Q

Which aortic arch? Stapedial and Hyoidal arteries

A

2nd

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5
Q

Which aortic arch? Pulmonary arteries

A

6th

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6
Q

Which aortic arch? Proximal right subclavian artery

A

4th

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7
Q

Which aortic arch? Ductus arteriosus

A

6th

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8
Q

Which germ tissue? Branchial clefts

A

Ectoderm

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9
Q

Which germ tissue? Branchial arches

A

Mesoderm

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10
Q

Which germ tissue? Branchial pouches

A

Endoderm

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11
Q

Which branchial structure? external auditory meatus

A

1st cleft

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12
Q

Which branchial structure? Muscles of Mastication

A

1st arch

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13
Q

Which branchial structure? CN IX

A

3rd arch

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14
Q

Which branchial structure? CN V2 and V3

A

1st arch

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15
Q

Which branchial structure? Stapes

A

2nd arch

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16
Q

Which branchial structure? Lesser horn of hyoid

A

2nd arch

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17
Q

Which branchial structure? Greater horn of hyoid

A

3rd arch

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18
Q

Which branchial structure? CN VII

A

2nd arch

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19
Q

Which branchial structure? Tensor tympani

A

1st arch

20
Q

Which branchial structure? Stapedius

A

2nd arch

21
Q

Which branchial structure? CN X

A

4th/6th arches

22
Q

Which branchial structure? Styloid process

A

2nd arch

23
Q

Which branchial structure? Pharyngeal constrictors

A

4th arch

24
Q

Which branchial structure? Thyroid and cricoid cartilage

A

4th/6th arches

25
Q

Which branchial structure? Platysma

A

2rd arch

26
Q

Which branchial structure? Stylopharyngeus

A

3rd arch

27
Q

Which branchial structure? Muscles of facial expression

A

2nd arch

28
Q

Which branchial structure? Intrinsic muscle of larynx (exc. cricothyroid)

A

6th arch

29
Q

Which branchial structure? Eustachian tube

A

1st pouch

30
Q

Which branchial structure? inferior parathyroid glands

A

Dorsal 3rd pouch

31
Q

Which branchial structure? Mastoid air cells

A

1st pouch

32
Q

Which branchial structure? Tonsils

A

2nd pouch

33
Q

Which branchial structure? Thymus

A

Ventral 3rd pouch

34
Q

Which branchial structure? Superior parathyroid glands

A

Dorsal 4th pouch

35
Q

Which genital precursor? glans penis

A

Genital tubercle

36
Q

Which genital precursor? Ventral shaft of penis

A

Urogenital folds

37
Q

Which genital precursor? Prostate gland

A

Urogenital sinus

38
Q

Which genital precursor? Corpus cavernosum and spongiosum

A

Genital tubercle

39
Q

Which genital precursor? Bulbourethral glands

A

Urogenital sinus

40
Q

Which genital precursor? Labia minora

A

Urogenital folds

41
Q

Which genital precursor? glans clitoris

A

Genital tubercle

42
Q

Which genital precursor? Vestibular bulbs

A

Genital tubercle

43
Q

Which genital precursor? Bartholin and Skene glands

A

Urogenital sinus

44
Q

____spadias: failure of _____ to fuse

A

hypo; urethral folds

45
Q

____spadias: abnormal opening due to faulty positioning of _______

A

epi; genital tubercle

Step 1 Review (15 decks)

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