Lecture 40: Development Of The Pharyngeal Arches Flashcards
Pharyngeal arch 1: nerve
Trigeminal CN V
pharyngeal arch 2 nerve
Facial CN VII
Pharyngeal arch 3 nerve
Glossopharyngeal CN IX
Pharyngeal arch 4 nerve
Cranial laryngeal from CN X (vagus)
Pharyngeal arch 6 nerve
Caudal laryngeal from vagus CN X
Cartilage of second arch becomes (2: general)
Cranial part of hyoid apparatus
Stapes
Cranial part of hyoid apparatus components: 2nd pharyngeal arch cartilage
Stylohyoid
Epihyoid
Ceratohyoid
Cranial part of basihyoid
Muscles of second pharyngeal arch (4)
Stylohyoideus and caudal Digastric
Stapedius
Muscles of facial expression
Where do muscles of facial expression (from 2nd arch) migrate into
Arch 1 territory
Arch 1: nerve, skeleton, muscles
CN V
Maxilla, zygomatic, temporal, mandible, malleus, incus
Muscles of mastication, tensor tympani, tensor veli palatini, mylohyoid, Rostral belly of Digastric
Arch 2: nerve, skeleton, muscles
CN VII
Stapes, stylohyoid, epihyoid, ceratohyoid, basihyoid
Muscles of facial expression, caudal belly of Digastric, stylohyoideus, stapedius
Arch 3: nerve, skeleton, muscle
CN IX
Thyrohyoid, basihyoid
Stylopharyngeus
Arch 4: nerve, skeleton, muscles
CN X cranial laryngeal
Laryngeal cartilages
Cricothryoid, Levator veli palatini, pharyngeal constrictors and movers
Arch 6: nerve, skeleton, muscles
CN X caudal laryngeal
Laryngeal cartilages
Internal laryngeal muscles
4 swellings from floor of developing pharynx that contribute to development of the tongue
Lateral lingual swellings
Tuberculum impair
Copula
Epiglottal swelling
