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Thought, Sense and Movement > Development of Head and Neck > Flashcards

Development of Head and Neck Flashcards

1
Q

The parietal and occipital bones are made up of which embryological tissue?

A

Paraxial mesoderm

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2
Q

Frontal, temporal, sphenoid, maxilla and mandibular bones are made up of which embryological tissue?

A

Neural crest cells

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3
Q

The laryngeals are made up of which embryological tissue?

A

Lateral plate mesoderm

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4
Q

Which embryological tissue forms the pharyngeal arch cores?

A

Paraxial mesoderm

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5
Q

How many pharyngeal arches are there?

A

Five - 1,2,3,4,6 - 5 obliterates

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6
Q

Where are pharyngeal pouches found?

A

Inside

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7
Q

Where are pharyngeal clefts found?

A

outside

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8
Q

What embryological tissue forms the pharyngeal clefts?

A

Ectoderm

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9
Q

What embryological tissue forms the pharyngeal pouches?

A

Endoderm

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10
Q

What skeletal structures does A1 form?

A

Bones of the middle ear and meckle’s cartilage (mandible)

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11
Q

What skeletal structures does A2 form?

A

Styloid and styloid process

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12
Q

What skeletal structures does A3 form?

A

Hyoid bone

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13
Q

What skeletal structures does A4 and A6 form?

A

The neck cartilages (cricoid and thyroid)

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14
Q

What is the cranial nerve innervation for A1?

A

Trigeminal V - V1/V2/V3

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15
Q

What is the cranial nerve innervation for A2?

A

CN VII - Facial

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16
Q

What is the cranial nerve innervation for A3?

A

CN XI - Glossopharyngeal

17
Q

What is the cranial nerve innervation for A4?

A

CN X - Superior laryngeal branch

18
Q

What is the cranial nerve innervation for A6?

A

CN X - Recurrent laryngeal branch

19
Q

Which pharyngeal arch arteries form the brachiocephalic trunk?

A

Right 4 and 6

20
Q

Which pharyngeal arch arteries form the ascending aorta?

A

Left 4

21
Q

Which pharyngeal arch arteries form the pulmonary trunk?

A

Left 6

22
Q

Which pharyngeal arch arteries form the left common carotid?

A

Left 3

23
Q

What is the fate of pharyngeal arch 1?

A

Splits in to the mandible and maxilla

24
Q

What is the fate of pharyngeal pouch 1?

A

Tympanic cavity and auditory tube

25
Q

What is the fate of pharyngeal membrane 1?

A

Tympanic membrane

26
Q

What is the fate of pharyngeal cleft 1?

A

External auditory meatus

27
Q

What is the fate of pharyngeal pouch 2?

A

Palatine tonsil

28
Q

What is the fate of pharyngeal pouch 3?

A

Thymus and inferior parathyroid gland

29
Q

What is the fate of pharyngeal pouch 4?

A

Superior parathyroid gland

30
Q

Failure of obliteration of the Pharyngeal clefts 2/3/4 can lead to which condition forming within the cervical sinus?

A

Branchial cyst

31
Q

Failure of fusion between the mandibular and maxillary processes can lead to which condition?

A

Cleft lip

32
Q

Failure of fusion between the left and right palatal processes and the primary palate can lead to which condition?

A

Cleft palate

Thought, Sense and Movement (32 decks)

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