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Human Development > Pharyngeal Arch/Pouch > Flashcards

Pharyngeal Arch/Pouch Flashcards

1
Q

Buccinator

A

Pharyngeal arch 2

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2
Q

Stylohyoid

A

Pharyngeal arch 2

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3
Q

Facial nerve CN VII

A

Pharyngeal arch 2

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4
Q

Intrinsic laryngeal

A

Pharyngeal arch 6

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5
Q

Maxillary A.

A

Pharyngeal arch 1

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6
Q

Model of mandible

A

Pharyngeal arch 1

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7
Q

Mastication muscles

A

Pharyngeal arch 1

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8
Q

Epiglottis (name the 2)

A

Pharyngeal arch 3 and 4

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9
Q

External Carotid A

A

Pharyngeal arch 1

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10
Q

Each pharyngeal arch contains a cartilaginous rod to form

A

skeletal structures

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11
Q

Right recurrent laryngeal nerve hooks around

A

Right subclavian

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12
Q

Facial muscles

A

Pharyngeal arch 2

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13
Q

Striated esophageal

A

Pharyngeal arch 6

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14
Q

Tensor tympani

A

Pharyngeal arch 1

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15
Q

Malleus

A

Pharyngeal arch 1

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16
Q

Levator veli palatini

A

Pharyngeal arch 4

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17
Q

X vagus and superior laryngeal n.

A

Pharyngeal arch 4

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18
Q

Incus

A

Pharyngeal arch 1

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19
Q

Pharyngeal constrictors

A

Pharyngeal arch 4

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20
Q

Which arch is the hyoid arch?

A

Pharyngeal arch 2

21
Q

Cricoid thyroid

A

Pharyngeal arch 4

22
Q

Each pharyngeal arch contains a muscular component from:

A

Somites

23
Q

Tensor veil palatini

A

Pharyngeal arch 1

24
Q

Each pharyngeal arch contains sensory/motor nerves from

A

Neuroectoderm

25
Q

Anterior digastric m.

A

Pharyngeal arch 1

26
Q

Stapedial artery

A

Pharyngeal arch 2

27
Q

Posterior digastric

A

Pharyngeal arch 2

28
Q

Stapedius

A

Pharyngeal arch 2

29
Q

Arch of aorta and Right subclavian

A

Pharyngeal arch 4

30
Q

Why does the recurrent laryngeal nerve have an asymmetry?

A

Because the degeneration of arch 5 and the distal part of arch 6 on the right (when the artery degenerates dismally) causes a difference in the curve of the nerve.

31
Q

Mylohyoid m

A

Pharyngeal arch 1

32
Q

What structures in the pharyngeal arch/pouches may not be derived from NCC?

A

— Muscle primordium (because NCC makes smooth muscle)
— Endothelial cells (because they’re derived from lateral mesoderm)
— Possibly nerves (because they are derived from neuroectoderm)

33
Q

Left Pulmonary A and R pulmonary A and Ductus Arteriosus

A

Pharyngeal arch 6

34
Q

Which arch is the mandibular arch?

A

Pharyngeal arch 1

35
Q

Stylopharyngeus

A

Pharyngeal arch 3

36
Q

CN X (vagus) and recurrent laryngeal

A

Pharyngeal arch 6

37
Q

Zygomatic process of temporal bone

A

Pharyngeal arch 1

38
Q

CN IX (glossopharyngeal)

A

Pharyngeal arch 3

39
Q

All laryngeal cartilages

A

Pharyngeal arch 4 (with 6, but 6 does not contribute to cricoid thyroid)

40
Q

V2 and V3 of CN V

A

Pharyngeal arch 1

41
Q

Each pharyngeal arch contains pharyngeal arch artery from

A

truncus arteriosus

42
Q

Maxillary

A

Pharyngeal arch 1

43
Q

Lesser cornea and superior body of hyoid

A

Pharyngeal arch 2

44
Q

Common carotid a. and internal carotid a.

A

Pharyngeal arch 3

45
Q

Left recurrent laryngeal nerve hooks around:

A 
Ductus arteriosus (adult ligamentum arteriosum)
6th aortic arch
46
Q

Greater Cornu and inferior body of hyoid

A

Pharyngeal arch 3

47
Q

Reichert’s cartilage

A

Pharyngeal arch 2

48
Q

Styloid process of temporal

A

Pharyngeal arch 2

49
Q

What structures are derived from neural crest in the pharyngeal arches/pouches?

A

— Mesenchyme (derived from neural crest cells, NCC)
— Maxillary and mandibular prominences
— All CT, dermis and smooth muscle
— Pharyngeal arch cartilages

Human Development (10 decks)

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