Video: Cov qauv dab tsi yog muab los ntawm thawj lub pharyngeal arch?
2023 Tus sau: Isaac Wood | [email protected]. Kawg hloov kho: 2023-05-24 13:04
Thawj arch
Tag nrho cov pharyngeal cov leeg uas tuaj ntawm thawj lub pharyngeal koov yog innervated los ntawm mandibular divisions ntawm trigeminal paj hlwb. Cov no cov leeg suav tag nrho cov cov leeg ntawm mastication, lub plab anterior ntawm lub digastric, lub mylohyoid, tensor tympani, thiab tensor veli palatini.
Tsuas yog li ntawd, dab tsi yog qhov derivatives ntawm pharyngeal arches?
Pharyngeal Arch Cheebtsam
| ExpandPharyngeal Arch Derivatives | ||
|---|---|---|
| Pharyngeal Arch | Ntshai | Cov hlab ntsha |
| 1 (maxillary / mandibular) | trigeminal (V) | maxillary hlab ntsha (terminal ceg) |
| 2 (hli) | ntsej muag (VII) | stapedial (embryonic) corticotympanic (tus neeg laus) |
| 3 | glossopharyngeal (IX) | feem ntau carotid, sab hauv carotid hlab ntsha |
Ib yam li ntawd, muaj pes tsawg tus pharyngeal arches muaj? 5 pharyngeal arches
Tsis tas li ntawd, pharyngeal arches yog dab tsi?
Cov pharyngeal arches yog ib ntus thiab morphologically complex embryonic qauv positioned posterior rau lub qhov muag thiab hauv qab pob ntseg. Nyob rau hauv tag nrho cov vertebrates, lub arches muaj xws li lub tog raj kheej ntawm cranial NCCs nyob ib ncig ntawm lub hauv paus ntawm mesoderm, lined externally los ntawm ectoderm thiab sab hauv los ntawm pharyngeal endoderm.
Yuav ua li cas cov ceg arches tsim?
Cov ceg arch system pib daim ntawv nyob rau hauv plaub lub lim tiam thiab muaj rau ua khub arches uas txo qhov loj ntawm cranial mus rau caudal. Txhua ceg arch muaj plaub yam tseem ceeb ntawm cov nqaij mos (cov pob txha mos, aortic arch artery, paj hlwb, cov leeg) uas ua haujlwm rau lub ntsej muag, caj dab, thiab oropharynx.