NURS 3350 Chapter 20: Med surge chapter 20
Document Summary
Med-surge~ chapter 20: assessment of respiratory function: purpose of the respiratory system: Delivers oxygen and expels carbon dioxide from the body, works in conjunction with the circulatory system. Filters impurities, humidifies and warms the air. Each nasal cavity is divided into three passageways by the projection of the turbinates from the lateral walls. These increase the mucous membrane surface of the nasal passage. Nasal mucosa traps all of the dust and organisms in the inhaled air: paranasal sinuses. Common site of infection: pharynx, tonsils, and adenoids. Connect the nasal and oral cavities to the larynx. Nasopharynx is located above the soft palate. Pharynx functions as passageway for respiratory and digestive tracts: larynx. Epiglottis covers opening to larynx during swallowing. Glottis is the opening between the vocal cords in the larynx. Cricoid cartilage is the ring in the larynx below the thyroid cartilage. Arytenoid cartilages are used in vocal cord movement with thyroid cartliages: trachea.
