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Embryology > Embryology: Branchial Apparatus Formation > Flashcards

Embryology: Branchial Apparatus Formation Flashcards

0
Q

Where is the branchial apparatus found?

A

Inferior to stomadeum

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1
Q

What does the branchial apparatus consist of?

A

Branchial Arches

Branchial Grooves

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2
Q

What does each arch consist of?

A

Mesenchyme (from neural crest cells)
Ectoderm
Endoderm

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3
Q

What is the first brachial arch?

A

Mandibular arch

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4
Q

What cartilage is associated with the mandibular arch?

A

Meckels Cartilage

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5
Q

Which arch directs the development of the mandibular teeth and associated structures?

A

Mandibular Arch (first arch)

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6
Q

What muscles are associated with the first arch?

A

Muscles of Mastication

Some Suprahyoid & Palatal muscles

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7
Q

What is the innervation of the mandibular arch?

A

V3

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8
Q

What is the name of the 2nd arch?

A

Hyoid

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9
Q

What is the cartliage associated with the hyoid arch?

A

Reicherts Cartilage

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10
Q

What bones are associated with the hyoid arch?

A

Hyoid and Temporal Bones

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11
Q

What muscles are associated with they Hyoid arch?

A

Muscles of Facial Expression

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12
Q

What is the common innervation of the hyoid arch?

A

VII

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13
Q

What is the name of the third arch?

A

Unamed

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14
Q

What structures are associated with the third arch?

A

Tongue

Part of the Hyoid Bone

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15
Q

What is the innervation for the 4th and 6th unamed arches?

A

IX and X

16
Q

What is the first branchial groove?

A

external auditory meatus

17
Q

What branchial grooves are obliterated?

A

2nd - 5th

18
Q

What is the first pharyngeal pouch?

A

Tympanic membrance (ear drum)

19
Q

What is the 2nd pharyngeal pouch?

A

Palatine tonsils

20
Q

What do the 3rd and 4th pharyngeal pouches contribute to?

A

Parathyroid gland and Thymus

21
Q

What was the embryonic source of Labii Levator superioris?

A

Second brachial Arch

22
Q

What is the embryonic origin of the masseter muscle?

A

1st Brachial Arch

Embryology (8 decks)

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