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Respiratory System

Science body system - Respiratory

TermDefinition
RBC (Red Blood Cell) Blood cell containing hemoglobin, which carries oxygen to your body's tissues
WBC (White Blood Cell) Blood cell that fights diseases
Platelet Tiny blood cells that help your body form clots to stop bleeding.
Atrium The upper blood collection chamber of the heart. Holds blood from the superior/inferior vena cava, anterior/smaller cardiac veins, and the coronary sinus.
Ventricle The lower blood collection chamber of the heart. It is separated from the atrium by a valve . The left ventricle is the main thing that pumps blood around the body, and is more muscular than any of the other chambers.
Heart A muscular organ that pumps blood to the lungs and around the body.
Artery Blood vessel that carries oxygenated blood away from the heart.
Vein Blood vessel that carries deoxygenated blood to the heart
Capillary Blood vessel that connects arteries and veins
Route of Blood Right Atrium, Tricuspid Valve, Right Ventricle, Pulmonary Arteries, Lungs, Pulmonary Veins, Left Atrium, Mitral Valve, Left Ventricle, Aorta, Body
Trachea A tube surrounded by rings of cartilage, connecting the larynx to the bronchial tubes. Referred to as "windpipe."
Larynx Forms an air passage to the lungs, and houses the vocal cords.
Pharynx Cavity connecting the nose and mouth to the esophagus.
Valve "Gates" that control and filter blood flow. They can be found in the heart and in the veins.
Diaphragm A sheet of skeletal muscle that contracts and expands, helping to inflate the lungs. It is directly beneath them.
Lungs The primary organ of human respiration. Their job is mostly to collect and transfer oxygen to the bloodstream and filter out carbon dioxide.
Bronchi Two tubes which conduct air into the right and left lungs, then breaking off into smaller and smaller branches called bronchioles.
Bronchioles Minute branches where the bronchus divides, which end in alveoli
Alveolar Sacs Sacs which contain bunches of alveoli.
Alveoli Clusters of these have thin walls, allowing oxygen to pass through them from the lungs and into the bloodstream. They also pick up carbon dioxide from the bloodstream.
Created by: Swald