ANSC 2340 Chapter Notes - Chapter 15: Defecation, Epiglottis, Place Of Articulation
26 Jan 2017
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Document Summary
Defined as all the respiratory structures outside of the lungs. Nasal septum: divides nasal passage into left and right. Thin, scroll-like bones covered with epithelium that occupies most of the nasal. Ventral turbinate and dorsal turbinate separate each nasal passage into three passages nasal meatus. Ventral meatus: between ventral turbinate and the floor. Dorsal meatus: between the dorsal turbinate and the roof. Common nasal meatus: on either side of the nasal septum, continuous with the other three meatus. A layer of mucus secreted by mucous glands and goblet cells. Turbinates increase surface area to do so. Cilia beat mucus into the pharynx, where it is swallowed. Outpouchings of the nasal passages contained within spaces in certain skull bones. Most animals have two frontal sinuses and two maxillary sinuses. Have ciliated linings to sweep mucus into the pharynx. Common passageway of the digestive ( oropharynx ) and respiratory ( nasopharynx ) system. Separated by the soft palate at the rostral part.
