BIOL 150A Lecture Notes - Lecture 10: Abdominal Cavity, Thoracic Cavity, Hyoglossus
26 Mar 2016
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Document Summary
Tissue that forms the mucosa that lines most of the nasal cavity, the paranasal sinuses and the repiratory passage o. 4 pairs of paranasal sinuses: ethmoid- above and between eyes, maxillary- surround nasal cavity. Locate in the split head model: external nares (nostrils) o. Superior/ middle/ inferior conchae: nasal septum, hard palate. Increase surface area to nasal cavity to warm, moisten and filter air, direct air to trap particles. Bones that form the bony part of the nasal septum. Perpendicular plate of the ethmoid bone o: vomer, cartilage of the septum. Location of nasopharynx: lies posterior to the nasal cavity o. Internal nares: opening of auditory tube/ eustachian tube/ pharyngotympanic tube o. Function of the auditory tube: connects nasopharynx to tympanic cavity- middle ear, another name for pharyngeal tonsils, adenoids. Location of oropharynx: extends from soft palate to hyoid bone. Function of the uvula: blocks entrance to the nasopharynx and prevents food from entering nasal cavity.
