ventilation - the process of moving air into and out of the lungs; includes inspiration and expiration, external respiration - the sequence of events that results in gas exchange between the blood and the external environment, internal respiration - the sequence of events that results in gas exchange between the blood and extracellular fluid, cellular respiration - the aerobic production of ATP using O2 as an electron acceptor and generating CO2 as a waste product, negative pressure - pulling air into the lungs by using the ribs and/or diaphragm, partial pressure - pressure that a gas exerts in a mixture of gases or gases and liquid (as in blood, glomerulus - filters small solutes from the blood, PCT - reabsorbs ions, water, and nutrients; removes toxins and adjusts filtrate pH, descending loop of Henle - aquaporins allow water to pass from the filtrate into the interstitial fluid, ascending loop of Henle - reabsorbs sodium and chloride from the filtrate into the interstitial fluid, distal tubule - selectively secretes and absorbs different ions to maintain blood pH and electrolyte balance, collecting duct - reabsorbs solutes and water from the filtrate, blood pressure - What force in the glomerular capillaries forces plasma and solutes through fenestrated capillaries into the glomerular capsule?, 99% - What percentage of the filtered water in the tubules is returned to the cardiovascular system?, excess electrolytes, wastes, drugs - Which of the following are secreted into the tubules?, constriction - When there is an increase in blood volume and a decrease in blood volume, the SNS stimulates the __________ of afferent arterioles., increase GFR and signal JG cells to release renin - When there is low osmolarity of the filtrate, cells decrease secretion of vasoconstrictors and release NO to cause which of the following?,

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