Arches-derivatives Flashcards by Stuart Abel

Q

Aortic Arch 1 Derivative

A

maxillary artery

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Q

Aortic Arch 2 Derivative

A

Stapedial artery (regresses) & Hyoid Artery

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Q

Aortic Arch 3 Derivative

A

Common carotid and proximal part of internal carotid artery

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Q

Aortic Arch 4 Left Derivative

A

Aortic Arch

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Q

Aortic Arch 4 Right Derivative

A

Proximal part of right subclavian

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Q

Aortic Arch 5 Derivative

A

None (obliterated)

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Q

Aortic Arch 6 Left Derivative

A

Proximal portion of left pulmonary artery and ductus arteriosus

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Q

Aortic Arch 6 Right Derivative

A

Proximal portion of right pulmonary artery

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Q

Aortic Arch 1 CN

A

Trigeminal

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Q

Aortic Arch 2 CN

A

Facial

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Q

Aortic Arch 3 CN

A

Glossopharyngeal

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Q

Aortic Arch 4 CN

A

Superior Laryngeal brach of Vagus

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Q

Aortic Arch 5 CN

A

None (obliterated)

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Q

Aortic Arch 6 CN

A

Recurrent laryngeal branch of Vagus

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Q

mandible

A

1st branchial arch (Meckel’s cartilage)

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Q

malleus

A

1st branchial arch (Meckel’s cartilage)

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Q

maxilla

A

1st branchial arch (Meckel’s cartilage)

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Q

incus

A

1st branchial arch (Meckel’s cartilage)

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Q

spheno-mandibular ligament

A

1st branchial arch (Meckel’s cartilage)

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Q

muscles of mastication (name them)

A

temporalis, masseter, medial and lateral pterygoids

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Q

mylohyoid muscle

A

1st branchial arch

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Q

anterior belly of digastric

A

1st branchial arch

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Q

tensor tympani

A

1st branchial arch

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Q

tensor veli palatini

A

1st branchial arch

Q

maxillary and mandibular branches of trigeminal (V2 & V3)

A

1st branchial arch; V3 innervates the associated muscles

Q

stapes

A

2nd branchial arch (Reichert’s cartilage)

Q

styloid process

A

2nd branchial arch (Reichert’s cartilage)

Q

lesser horn of hyoid

A

2nd branchial arch (Reichert’s cartilage)

Q

stylohyoid ligament

A

2nd branchial arch (Reichert’s cartilage)

Q

muscles of facial expression

A

2nd branchial arch

Q

stapedius

A

2nd branchial arch

Q

stylohyoid

A

2nd branchial arch

Q

posterior belly of digastric

A

2nd branchial arch

Q

Facial nerve (CN VII)

A

2nd branchial arch

Q

1st arch neural crest fails to migrate leading to mandibular hypoplasia and facial abnormalities

A

Treacher Collins Syndrome

Q

greater horn of hyoid

A

3rd branchial arch

Q

stylopharyngeus

A

3rd branchial arch

Q

glossopharyngeal

A

3rd branchial arch

Q

thyroid, cricoid, arytenoid, corniculate, and cuneiform cartilages

A

4th-6th branchial arches; associated with or located near larynx

Q

most pharyngeal constrictors

A

4th branchial arch

Q

cricothyroid (and what innervates it)

A

4th branchial arch; only laryngeal muscle innervated by superior laryngeal branch of vagus

Q

levator veli palatini

A

4th branchial arch

Q

all instrinsic muscles of larynx except cricothyroid

A

6th branchial arch

Q

superior laryngeal branch of vagus

A

4th branchial arch, which is why it innervates cricothyroid

Q

recurrent laryngeal branch of vagus

A

6th branchial arch

Q

posterior 1/3 of tongue

A

3rd and 4th branchial arches

Q

middle ear cavity

A

1st branchial pouch

Q

eustachian tube

A

1st branchial pouch

Q

mastoid air cells

A

1st branchial pouch

Q

epithelial lining of palatine tonsil

A

2nd branchial pouch

Q

inferior parathyroids

A

3rd branchial pouch (dorsal wings)

Q

thymus

A

3rd branchial pouch (ventral wings)

Q

superior parathyroids

A

4th branchial pouch (dorsal wings)

Q

anterior 2/3 of tongue

A

1st branchial arch

Q

thyroid parafollicular cells

A

4th branchial pouch

Q

Temporalis Muscle

A

Branchial Arch 1

Q

Masseter Muscle

A

Branchial Arch 1

Q

Lateral and medial pterygoid muscles

A

Branchial Arch 1

Q

fistula between tonsillar area, cleft in lateral neck; cyst dn move with swallowing

A

Congenital pharyngocutaneous fistula: persistence of 3rd cleft and pouch