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bubbles around certain substances that move things in and out of the cells in endo/exocytosis
smallest blood vessel, brings nutrients and oxygen to tissues, absorbs carbon dioxide and waste products, in the kidney: reabsorb needed nutrients and secret waste materials
upper muscular chamber of the heart, receives and holds blood that is about to enter the ventricle
pumps oxygenated blood to aorta, and deoxygenated blood to pulmonary arteries to go to lungs (more muscular than atria)
straw colored fluid, makes up 55% of blood, made of water, nutrients, enzymes, hormones, and proteins
also called the vocal cords, 2 elastic folds of tissue when pull the air going between them make vibrations that create sounds
tiny air sacs that are connected to the end of bronchioles that provide surface area for gas exchange
muscle under the lungs, when it contracts down air goes in and pushes air out when it contracts up
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