Bronchial (Pharyngeal) Arches

:: 1st Pharyngeal Arch (also called "mandibular arch") ::

Muscular contributions

Muscles of mastication, anterior belly of thedigastric, mylohyoid, tensor tympani, tensor veli palatini

Skeletal contributions

Maxilla, mandible (only as a model for mandible not actual formation of mandible), the incus, and the malleus of the middle ear, also Meckel's cartilage

Nerve

Trigeminal nerve(V2 and V3)

Artery

Maxillary artery, external carotid artery

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:: 2nd Pharyngeal Arch (also called the "hyoid arch") ::
Muscular contributions

Muscles of facial expression, buccinator,platysma, stapedius, stylohyoid, posterior belly of the digastric 

Skeletal contributions

Stapes, temporal styloid process, hyoid (lesser horn and upper part of body), Reichert's cartilage 

Nerve

Facial nerve (VII)

Artery

Stapedial artery, hyoid artery

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:: 3rd Pharyngeal Arch ::

Muscular contributions

Stylopharyngeus

Skeletal contributions

Hyoid (greater horn and lower part of body), thymus, inferior parathyroids

Nerve

Glossopharyngeal nerve (IX)

Artery

Common carotid, internal carotid

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:: 4th Pharyngeal Arch ::

Muscular contributions

Cricothyroid muscle, all intrinsic muscles of soft palate (including levator veli palatini) except tensor veli palatini

Skeletal contributions

Thyroid cartilage, superior parathyroids, epiglottic cartilage

Nerve

Vagus nerve (X),superior laryngeal nerve

Artery
Right 4th aortic arch:subclavian artery
Left 4th aortic arch: aortic arch

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:: 6th Pharyngeal Arch ::

Muscular contributions

All intrinsic muscles of larynx except the cricothyroid muscle

Skeletal contributions

Cricoid cartilage, arytenoid cartilages, corniculate cartilage, cuneiform cartilages

Nerve

Vagus nerve (X), recurrent laryngeal nerve

Artery

Right 6th aortic arch: pulmonary artery
Left 6th aortic arch: pulmonary artery and ductus arteriosus

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This Article has been authored By :: World Of Dentistry :: TEAM
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:: World Of Dentistry :: TEAM