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15 Cards in this Set
- Front
- Back
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Branchial Arch 1 - Muscles
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Remember the M's:
-Muscles of Mastication -Masseter -Medial pterygoids -Mylohyoid -Anterior belly of digrastric, tensor tympani, tensor veli palatini, anterior 2/3 of tongue |
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Branchial Arch 1 - Nerves
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CN V2 and V3 (chewing)
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Branchial Arch 1 - Abnormalities
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Treacher Collins syndrome: 1st arch neural crest fails to migrate --> mandibular hypoplacial, facial abnormalities, kr)
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Branchial Arch 1 - Cartilage
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Meckel's cartilage:
Mandible Malleus Incus Spheno-Mandibular ligament |
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Branchial Arch 2 - Cartilage
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Think S's:
(Reichert's cartilage:) -Stapes -Styloid process -LeSSer horn of hyoid -Stylohyoid ligament |
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Branchial Arch 2 - Muscles
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Muscles of Facial ExpreSSion
Stapedius Stylohyoid PoSterior belly of digastric |
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Branchial Arch 2 - Nerves
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CN VII (facial expression)
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Branchial arch 3 - Cartilage
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Greater horn of hyoid (lesser horn of hyoid is arch 2)
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Branchial Arch 3 - Muscle
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Stylopharyngeus (innervated by glossopharyngeal nerve)
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Branchial Arch 3 - Nerve
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CN IX
(Glossopharyngeal nerve) |
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Branchial Arch 3 - Abnormalities
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Congenital pharyngo-cutaneous fistula: persistence of cleft & pouch --> fistula between tonsillar area, cleft in lateral neck
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Branchial Arch 4-6 - Cartilages
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Thyroid
CricoidArytenoids Corniculate Cuneiform |
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Branchial Arch 4-6 - Muscles
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4th arch: most pharyngeal constrictors; cricothyroid; levator veli palatini
So, Phourth is Pharynx 6th arch: all intrinsic muscles of larynx (except cricothyroid) And 6th = larynx |
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Branchial Arch 4-6 - Nerves
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4th: CN X (superior laryngeal branch - swallowing)
6th: CN X (recurrent laryngeal branch - speaking) |
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What forms the posterior 1/3 of tongue?
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Branchial arches 3 and 4
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