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My head and neck relationships > embryology > Flashcards

embryology Flashcards

1
Q

1st pharyngeal arch gives rise to (skeletal)

A

mandibular; mandibular prominence, Meckel’s cartilage*, mandible, incus, malleus

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2
Q

2nd pharyngeal arch gives rise to (skeletal)

A

hyoid; Reichert cartilage*, styloid process of temporal bone, superior hyoid, stapes

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3
Q

3rd pharyngeal arch gives rise to (skeletal)

A

inferior hyoid

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4
Q

4th/6th pharyngeal arch gives rise to (skeletal)

A

laryngeal cartilages

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5
Q

1st pharyngeal arch gives rise to (mesoderm)

A

muscles of mastication + anterior belly of digastric

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6
Q

2nd pharyngeal arch gives rise to (mesoderm)

A

muscles of facial expression + posterior belly of digastric

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7
Q

3rd pharyngeal arch gives rise to (mesoderm)

A

stylopharyngeus

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8
Q

4th/6th pharyngeal arch gives rise to (mesoderm)

A

pharyngeal constrictors, soft palate muscles, laryngeal muscles

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9
Q

1st pharyngeal arch (innervation)

A

trigeminal (V)

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10
Q

2nd pharyngeal arch (innervation)

A

facial (VII)

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11
Q

3rd pharyngeal arch (innervation)

A

glossopharyngeal (IX)

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12
Q

4th pharyngeal arch (innervation)

A

vagal (X)

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13
Q

1st cleft/pouch

A

auditory meatus, tympanum, middle ear cavity

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14
Q

2nd pouch

A

palatine tonsil (thryoid gland from midline endoderm of 2nd arch)

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15
Q

3rd pouch

A

inferior parathyroid glands, thymus

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16
Q

4th pouch

A

superior parathyroid glands, ultimobranchial bodies

17
Q

anterior 2/3 tongue (arch)

A

1st

18
Q

posterior 1/3 tongue (arch)

A

3rd, 4th

19
Q

tongue musculature

A

none

20
Q

anterior 2/3 tongue (cranial nerve)

A

general sensory = trigeminal (V); gustatory = facial (VII)

21
Q

posterior 1/3 tongue (cranial nerve)

A

general sensory = glossopharyngeal (IX) + vagus (X); gustatory = glossopharyngeal (IX)

22
Q

tongue musculature

A

motor = hypoglossal (XII)

My head and neck relationships (12 decks)

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