HSC 3537 Lecture Notes - Lecture 12: Paranasal Sinuses, Lymphatic System, Bronchus
Document Summary
External respiration: exchange of air in lung capillaries. Oxygen inhaled into the air sacs of the lungs. Carbon dioxide passes from capillaries into air sacs, to be exhaled. Internal respiration: exchange of gases in the cells. Oxygen passes out of the bloodstream into the tissues. Carbon dioxide passes out of tissues back into the bloodstream to travel to the lungs. Mediastinum: middle of chest where trachea divides into two branches. Bronchi: each leads to a separate lung. Hilum: blood vessels, nerves, lymphatic tissue, and bronchial tubes enter and exit. Thorax sinus cavity breathing complete chest tonsils trachea, windpipe condition smell breathing spitting pulse pleural cavity, chest. Pleural rub: rales (crackles, rhonchi (singular rhonchus) (deep snoring) Complete or partial collapse of a lung or a section (lobe) of a lung. Computed tomography (ct) scan of the chest. Magnetic resonance imaging (mri): magnetic waves create images. Positron emission tomography (pet) scan of the lung.
