Netter's MCQs Chapter 1: Development of the Head & Neck Flashcards

1
Q

The pharyngeal arches start forming during which week of development?

a: 1st
b: 2nd
c: 3rd
d: 4th

A

d: 4th

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2
Q

Pharyngeal pouches arise from which germ layer?

a: ectoderm
b: endoderm
c: paraxial mesoderm
d: intermediate mesoderm

A

b: endoderm

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3
Q

Muscular structures develop from which germ layer?

a: endoderm
b: mesoderm
c: neural crest
d: neuroectoderm

A

b: mesoderm

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4
Q

The trigeminal nerve (V) innervates which pharyngeal arch?

a: 1
b: 2
c: 3
d: 4

A

a: 1

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5
Q

Which pharyngeal arch regresses after initial development?

a: 1
b: 2
c: 4
d: 5

A

d: 5

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6
Q

The internal lining of the pharyngeal membrane is composed of:

a: endoderm
b: mesoderm
c: neural crest cells
d: ectomesenchyme

A

a: endoderm

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7
Q
The 2nd pharyngeal pouch forms which structure?
a: tonsillar fossa
b: superior parathyroid gland
c : epithelium of auditory tube
d: epithelium of tympanic cavity
A

a: tonsillar fossa

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8
Q

Which structure is not ossified?

a: incus
b: malleus
c: inferior nasal concha
d: sphenomandibular ligament

A

d: sphenomandibular ligament

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9
Q

Which structure does not originate from the 2nd pharyngeal arch?

a: stapes
b: maxilla
c: styloid process
d: stylohyoid ligament

A

b: maxilla

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10
Q

The earliest the posterior fontanelle might close is at which time?

a: 1 month
b: 3 months
c: 4 months
d: 12 months

A

a: 1 month

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11
Q

Which structure is formed by the membranous neurocranium?

a: ethmoid
b: frontal bone
c: petrous portion of temporal bone
d: sphenoid

A

b: frontal bone

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12
Q

The secondary palate is formed by protrusions from which prominence?

a: maxillary
b: mandibular
c: medial nasal
d: lateral nasal

A

a: maxillary

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13
Q

The formation of the definitive palate involves all but which structures?

a: nasal septum
b: primary palate
c: secondary palate
d: mandibular prominence

A

d: mandibular prominence

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14
Q

Which pharyngeal arch forms the anterior 2/3 of the tongue?

a: 1
b: 2
c: 4
d: 5

A

a: 1

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