Branchial apparatus Word Scramble
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| Question | Answer |
| Branchial pouch 1 | middle ear cavity, eustachian tube, mastoid air cells |
| Branchial pouch 2 | epithelial lining of palatine tonsil |
| Branchial pouch 3 (dorsal) | inferior parathyroids |
| Branchial pouch 3 (ventral) | thymus |
| Branchial pouch 4 | Superior parathyroids |
| Aberrant development of 3 and 4th pouches | DiGeorge syndrome: leads to t cell deficiency (thymic aplasia) and hypocalcemia |
| Branchial arch 1 cartilage (Meckel's) | Malleus, incus, sphenomandibular ligament, mandible |
| Branchial arch 2 cartilage (Reichert's) | Styloid process, stapes, stylohyoid ligament, lesser horn of hyoid |
| Branchial arch 3 cartilage | greater horn of hyoid |
| Branchial arch 4 and 6 cartilage | epiglottic, thyroid cartilage, arytenoids, corniculate, cuneiform |
| Branchial arch 1 muscle | Mylohyoid, (masseters, temporalis, lateral and medial pterygoids), anterior 2/3 of tongue, anterio digastric belly, tensor tympani, tensor veli palatini |
| Branchial arch 2 muscle | Stylohyoid, posterior digastric belly, stapedius, muscles of facial expression |
| Branchial arch 3 muscle | stylopharyngeus, poster 1/3 of tongue |
| Branchial arch 4 muscle | cricothyroid, levator veli palatini, pharyngeal constrictors, posterior 1/3 of tongue |
| Branchial arch 6 muscle | Intrinsic laryngeal muscles, no cricothyroid msucle, |
| Congenital pharyngocutaneous fistula | associated with persistance of 3rd cleft and pouch (tonsillar area) |
| Treacher collins | 1st arch neural crest fails to migrate --> mandibular hypoplasia, facial abnormalities |
| Cleft is made from what tissue derivative? | ectoderm |
| Arch is made from what tissue derivative? | mesoderm (muscles, arteries), neural crest (bones, cartilage) |
| Pouch is made from what tissue derivative? | endoderm |
| Arch 1 (think of ___), 2 etc. | 1 = chewing, 2 = facial expression, 3 = stylopharyngeus, 4 = swallowing, 6 = speaking |
| Superior laryngeal branch ___, Recurrent laryngeal branch ____ | 4th arch, 6th arch |
| 1st cleft | external auditory meatus |
| 2nd-4th cleft | temporary cervical sinuses which are olbiterated by 2nd arch |
Created by:
ddecampo
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