Define These Respiratory System Questions Flashcards

•the RBC gets the oxygen when blood travels to the lungs via our pulmonary circuit

–series of organs responsible for taking in oxygen and expelling carbon dioxide –composed of lungs and airways

Lungs and airways –responsible for taking in oxygen and expelling carbon dioxide

•nasal cavities, pharynx, epiglottis and larynxfunnels air in

•: trachea, bronchus, bronchioles, lung, diaphragm–moves air to lungs for gas exchange

•nasal cavities•mouth

–air enters nasal cavities and encounters stiff hairs-–mucous membrane

–air gets moistened but not filtered

–always sits over your foodpipe/esophagus to keep your windpipe/trachea open to allow air to pass through–but when you eat it moves over the trachea/windpipe pipe so food stays out of the respiratory tract

–where your vocal cords sit–air moving through the cords vibrates to produce sound

–also called windpipe–lies in front to esophagus–lined by epithelial cells that secrete mucus and have cilia–connective and smooth muscle

•in lungs•pair of cone-shaped organs•located above the diaphragm–broad sheet of muscle between chest and abdominal cavities–this helps push lungs out and in when air enters your lungs

•gas exchange

–1. thin epithelium–2. close to capillary–3. high to low concentration–4. the temperature and acidity of lung tissue

–main trigger that controls breathing rate and depth