12720700
Description
Flashcards by Tara McLaughlin, updated more than 1 year ago
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Created by Tara McLaughlin
about 6 years ago
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| Question | Answer |
| What type of lining can be found on the pharyngeal arch? | Ectoderm lining |
| What type of lining can be found on the pharyngeal pouches? | Endoderm lining |
| What cranial nerve is associated with pharyngeal arch one? | Trigeminal nerve |
| What cranial nerve is associated with pharyngeal arch two? | Facial nerve |
| What cranial nerve is associated with pharyngeal arch three? | Glossopharyngeal nerve |
| What cranial nerve is associated with pharyngeal arch four-six? | Vagus nerve |
| Which pharyngeal arch is associated with forming the maxillary and mandibular processes? | pharyngeal arch one |
| What does the first pharyngeal pouch give rise to? | Auditory tube and tympanic cavity |
| What does the second pharyngeal pouch give rise to? | Tonsillar fossa and palatine tonsils |
| What does the third pharyngeal pouch give rise to? | Thymus and inferior parathyroid glands |
| What does the fourth pharyngeal pouch give rise to? | Superior parathyroid gland and ultimobranchial body |
| Which pharyngeal cleft gives rise to the external auditory meatus? | First cleft |
| What does the lateral lingual swellings and the medial swelling give rise to? | Anterior two-thirds of the tongue |
| What is the swelling called that merges with swellings from the third and fourth pharyngeal arches to form the posterior third of the tongue? | Copula |
| How many facial prominences are there? | five (two maxillary, two mandibular and one frontonasal) |
| Invagination of the nasal pit will eventually give what structure? | Nasal cavity |
| Which swellings will eventually form the bridge and septum of the nose? | Medial nasal swellings |
| The upper lip is formed from which two structures? | Maxillary prominences and the medial nasal swellings |
| What will the lateral nasal swellings form? | Alae of the nose |
| What swellings form the intermaxillary segment? | Medial nasal swellings |
| What are the three components that the intermaxillary segments form? | Labial, upper jaw and palatal component |
| Which structure, derived from the intermaxillary segment, carries the upper four incisors? | Upper jaw component |
| What are the outgrowths from the maxillary prominences that give rise to the secondary palate? | Palatine shelves |
| What week to the palatine shelves start to grow inferiorly? | Week six |
| What is hypothesised to be the reason the palatine shelves rotate? | Synthesis and hydration of hyaluronic acid within the extracellular matrix of the palatine shelves |
| What landmark distinguishes the primary palate from the secondary palate? | Incisive foramen |
| What prominences lowers to give more room in the oral cavity allowing the palatine shelves to rotate? | Mandibular prominences |
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