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# Pharyngeal Arches and derivatives This table describes the different pharyngeal arches, their associated nerves, blood vessels, muscles, cartilage, and the bones they contribute to. | Arches | Nerves | Blood | Muscles | Cartilage | Bones that form (eventually) | |---|---|---|---|---|---| | 1st (...

# Pharyngeal Arches and derivatives This table describes the different pharyngeal arches, their associated nerves, blood vessels, muscles, cartilage, and the bones they contribute to. | Arches | Nerves | Blood | Muscles | Cartilage | Bones that form (eventually) | |---|---|---|---|---|---| | 1st (I) Mandibular arch | Trigeminal nerve (cranial nerve V) | 1st aortic arch blood vessel | Muscles of mastication | Merkel's Cartilage | Mandible, Maxilla, zygomatic bones, the squamous portion of the temporal bone, malleus and incus of ear | | 2nd (II) Hyoid arch | Facial Nerve (VII) (cranial nerve) | 2nd aortic arch blood vessel | Muscles of facial expression | Reichert's Cartilage | Part of the hyoid bone, body of hyoid, styloid process, the stapes | | 3rd (III) | Glossopharyngeal Nerve (cranial nerve IX) | 3rd aortic arch blood vessel | Stylopharyngeal muscle (supports swallowing) | None | Part of the hyoid bone and body, connective tissue of the thymus, inferior parathyroid | | 4th (IV) | Superior laryngeal branch of Vagus nerve (cranial nerve X) | 4th aortic arch blood vessel | Laryngeal muscles | Cartilage of the larynx | Thyroid, corniculate and cuneiform. |