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DHYG341-34
Dental Embryology Week 2
Term | Definition |
---|---|
Pharyngeal Pouch #1 | Can be found in between Pharyngeal Arch 1 and 2. Pharyngeal Pouch #1 becomes the MIDDLE EAR and EUSTACHIAN TUBE. |
Pharyngeal Pouch #2 | Can be found in between Pharyngeal Arch 2 and 3. Pharyngeal Pouch #2 becomes the palatine tonsils |
Pharyngeal Arch #2 MUSCLES | Muscles derived from Pharyngeal Arch #2 are the FACIAL EXPRESSION MUSCLES, NECK and EAR. |
Pharyngeal Arch #2 Nerve | Cranial Nerve #7 which emerges from the PONS of brainstem and controls the muscles of FACIAL EXPRESSION, SECRETION of TEARS and SALIVA; TASTE (ANTERIOR TWO-THIRDS) |
Pharyngeal Arch #2 Cartilage/Bone | Gives rise to REICHERT'S CARTILAGE, STAPES, STYLOID PROCESS, HYOID |
Pharyngeal Arch #2 Vessels | Two arteries: STAPEDIAL artery - which regresses before birth. HYOID artery - which becomes the corticotympanic artery in adults |