WSU BIOLOGY 251 - Exam 4 Study Guide (6 pages)

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Exam 4 Study Guide



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BIOL 251 1st Edition Exam 4 Study Guide Lectures 18 23 1 Name one airway that is composed of cartilage Trachea or bronchi 1 Circle which is greater intrapleural pressure or intralveolar pressure 1 Briefly describe the events of inspiration that allow you to get fresh air into your lungs Respiratory muscles contract Volume of chest cavity increases Volume of lungs increases Pressure in lungs drops below atmospheric pressure Air moves down pressure gradient from environment into lungs 1 CO2 is converted into HCO3 and H inside the red blood cells HCO3 then diffuses out of the red blood cells and Cl diffuses into the red blood cells to restore the electrical gradient The H remaining in the red blood cells bind to Hb 1 Fill in the following blanks using one of the following words each word may be used once more than once or not at all large small pulmonary tissue left right more less A small change in Po2in the tissue capillaries results in a large change in Hb saturation Increased metabolism right shifts the Hb oxygen saturation curve which is functionally significant because it mean Hb is more effective unloading oxygen in the tissue capillaries 1 Fill in the following blanks using one of the following words each word may be used once more than once or not at all glucose phosphate urea Cl actively passively pressure electrical chemical osmotic Glucose is reabsorbed using a Na dependent secondary active transport that is poorly regulated whereas phosphate is reabsorbed using Na dependent secondary active transport that is tightly regulated Cl ions passively follow the electrical gradient of Na water molecules follow Na using a n osmotic gradient 1 If the hypothalamic osmoreceptors detect that you have too much salt per volume of water i e you are hypertonic vasopressin is released which cause the kidneys to reabsorb more water This can result in an unintended and hazardous increase in your blood pressure 1 Fill in the following blanks using one of the following words or



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