BIOL 1410 Lecture Notes - Pseudostratified Columnar Epithelium, Inferior Nasal Concha, Hyaline Cartilage
18 Dec 2013
School
Department
Course
Professor
Document Summary
Nose, nasal cavity, pharynx: nose, bone + hyaline cartilage, covered by skin and muscle, nostrils/external nares, nasal cavity, nasal septum divides, anterior is hyaline cartilage, posterior is vomer, ethmoid, palatine, maxillae, vestibule/anterior area. Lined by skin with coarse hairs: respiratory area. Epithelium is ciliated pseudostratified columnar with goblet cells. Divided into meatuses/passages by conchae (superior and middle are part of ethmoid bone) Lacrimal ducts open into nasal cavity inferior to inferior nasal conchae: olfactory area. Function of nasal cavity: warm, moisten, and filter, olfaction/smell, speech/ resonance chamber, paranasal sinuses. In frontal, sphenoid, ethmoid, and maxillary bones: lined with ciliated, pseudostratified columnar epithelium, open into nasal cavity. Inflammation of mucous membranes: pharynx, throat, wall of skeletal muscle lined by mucous membrane, nasopharynx. Unpaired cartilages: thyroid/adam"s apple: on anterior wall, hyaline cartilage, epiglottis: covers glottis during swallowing, elastic cartilage, cricoid cartilage: ring of hyaline cartilage. Paired cartilages: all 3 hyaline cartilage, arytenoid muscle attaches vocal cords: vocal cords:
