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Histology and Embryology > Development of the Pharynx + Thyroid Gland > Flashcards

Development of the Pharynx + Thyroid Gland Flashcards

1
Q

Which arch forms the hyoid apparatus (in part) and the stapes?

A
  • Second, or Hyoid Pharyngeal/branchial arch
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2
Q

Which arch forms the muscles of mastication and digastricus (in part)?

A
  • the first, or mandibular pharyngeal/branchial arch
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3
Q

Which arch forms the vagus and medullary part of the accessory nerve (XI) innervation?

A
  • the fourth pharyngeal/branchial arch
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4
Q

Which arch forms the mandible (in part), the malleus and the incus?

A
  • the first, or mandibular pharyngeal/branchial arch
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5
Q

Which arch forms most laryngeal cartilages?

A
  • the fourth pharyngeal/branchial arch
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6
Q

Which arch forms the facial nerve (VII) innervation?

A
  • the second, or hyoid pharyngeal/branchial arch
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7
Q

Which arch forms the mandibular division of the trigeminal nerve (V) innervation?

A
  • the first, or mandibular pharyngeal/branchial arch
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8
Q

Which arch forms the pharyngeal muscles (in part)?

A
  • the third pharyngeal/branchial arch
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9
Q

Which arch forms the glossopharyngeal nerve (IX) innervation?

A
  • the third pharyngeal/branchial arch
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10
Q

Which arch forms the pharyngeal and laryngeal muscles?

A
  • this fourth pharyngeal/branchial arch
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11
Q

Which arch forms the muscles of the facial expression, digastricus (in part) and stapedius

A
  • the second, or hyoid pharyngeal/branchial arch
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12
Q

Which arch forms the hyoid apparatus (remaining part)?

A
  • the third pharyngeal/branchial arch
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13
Q

The pharyngeal arches are derived from ___________

A
  • mesoderm and neural crest
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14
Q

The pharyngeal clefts are derived from _______

A
  • ectoderm
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15
Q

The pharyngeal pouches are derived from _________

A
  • endoderm
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16
Q

The _________ is derived from the first pharyngeal cleft

A
  • external acoustic meatus
17
Q

The cervical sinus is derived from the _________ pharyngeal cleft

A
  • 2, 3, 4th
18
Q

The tonsillar fossa is derived from the _____ pharyngeal pouch

A
  • 2nd
19
Q

The parathyroid and thymus is derived from the _____ pharyngeal pouch

A
  • 3rd
20
Q

The tympanic cavity and auditory tube is derived from the ______ pharyngeal poucb

A
  • 1st
21
Q

The parathyroid and ultimobranchial body (parafollicular cells) is derived from the _______

A
  • 4th
22
Q

The thyroid bud is a downgrowth of the _____ pharynx

A
  • endodermal
23
Q

The Thyroid follicles are derived from ______

A
  • endoderm
24
Q

The connective tissue of the thyroid is derived from _______

A
  • mesoderm

Histology and Embryology (17 decks)

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