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Respiration and Excretion

pharynx tube-like passageway used by food, liquid, and air
larynx area between pharynx and trachea; where vocal cords are located
trachea tube around 12 cm in length that leads to the lungs; made of cartilage; lined with mucous membranes and cilia to trap dust, bacteria, and pollen
bronchi two short tubes that lead from the trachea to each lung
alveoli tiny, thin-walled grape-like clusters at the end of each bronchiole that are surrounded by capillaries; exchange of oxygen and carbon dioxide takes place here
diaphragm muscle beneath your lungs that relaxes and contracts to help move gases into and out of your lungs
emphysema disease in which the alveoli in the lungs enlarge; limits the exchange of carbon dioxide and oxygen
asthma reaction that causes bronchial tubes to contract quickly; causes shortness of breath, wheezing, and coughing
breathing the movement of the chest that brings air into the lungs and removes waste gases
respiration series of chemical reactions used to release energy stored in food molecules; requires oxygen
epiglottis flap of tissue that covers the airway when swallowing to prevent food or liquid from entering
urinary system system of excretory organs that rids the blood of wastes, controls blood volume by removing excess water, and balances concentrations of salts and water
urine liquid waste that contains excessive water, salts, and other wastes that are not reabsorbed by the body
kidney bean shaped urinary system organ that is made up of about 1 million nephrons and filters blood, producing urine
nephron tiny filtering unit of the kidney
ureter tube that carries urine from each kidney to the bladder
bladder elastic, muscular organ that holds urine until it leaves the body through the urethra
urethra tube that carries urine from the bladder to the outside of the body
Created by: MsHollinger
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