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5 Cards in this Set
- Front
- Back
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first pharyngeal arch
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"mandibular arch"
artery: first aortic arch cartilage: Meckel's = incus + malleus by EO sphenomandibular lig IO: mandible, palatine, zygomatic arch, part of temporal, maxilla Muscle: mastication, tympani, tensor veli pelatini, anterior belly digastric, mylohyoid Nerve: maxillary and mandiublar div. of trigeminal (V2, V3) Groove = external auditory meatus pouch = auditory tube, inner surface of timpanic membrane, middle ear epithelium (AIM) |
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second pharyngeal arch
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"Hyoid arch"
Artery: 2nd aorta Skeletal: Reichert's= stapes styloid process, stylohyoid ligament, hyoid: lesser horn, upper body Nerve: 7 Muscles: stylohyoid, stapedius, posterior belly digastric, , muscles of the facial expression |
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Third pharyngeal arch
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ARtery: 3rd aortic artery
cartilage: hyoid: greater horn, lower body muscle: stylopharyngeus nerve: glossopharyngeal IX groove: incorporated into cervcial sinus and obliterated with neck development Pouch: tonsillar cleft for palatine tonsil |
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Fourth arch
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Artery: NA
Cartilage: Laryngeal cartilage Muscle: pharyngeal constrictors, intrinsic laryngeal muscles nerve: superior laryngeal branch of vagus X groove: incorporated into cervical sinus and obliterated with neck development pouch: tonsillar cleft for palatine tonsil dorsal - inferior parathyroid ventral - thymus |
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Sixth arch
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Artery: 6th aorta arch
Cartilage: laryngeal cartilage muscles: pharyngeal constrictors, intrinsic laryngeal muscls nerve: recurrent laryngeal nerve vagus X Groove: obliterated with neck development pouch: ? |
