when carbon dioxide accumulates in extracellular fluids, the pH___. a: rises B: falls c: is unchanged d: sometimes rises, sometimes falls
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- &09.__________ is a substance secreted by cells in the lungs that reduces surface tension.?00:00:00 Hyperventilation will CO2, causingH+, and blood pH. O decrease CO2, decrease H+, decrease pH O decrease CO2, decrease H+, increase pH decrease CO2, increase H+, decrease pH O decrease CO2, increase H+, increase pH increase CO2, decrease H+, decrease pH Oincrease C02, decrease H+, increase pH increase CO2, increase H+, decrease pH increase CO2, increase H+, increase pHA patient is hyperventilating (breathing very quickly). Consider the consequences of this action on the carbon dioxide level in the blood. What can occur? respiratory alkalosis metabolic acidosis metabolic alkalosis respiratory acidosis
- blood ph varies between 7.35 and 7.45, with a target value of 7.4. if someone's blood ph begins to decrease, chemoreceptors detect this change and send the information to the brain the brain analyzes the input and sends out a command to the respiratory muscles causing breathing rate to increases, which reduces carbon dioxide levels and thereby increases the ph of ther blood. name the body part, values, or actions in this specific scenario involving ph Normal range Set point Stimulus Sensor integrsting center Effector ResponseThe carbonic acid equilibrium is shown below. Exhalation of CO2 by the lungs causes this equilibrium to shift to the ______, which causes the pH of the blood to _______. H+ + HCO3- <=> H2CO3 <=> H2O + CO2 a) left; increase b) left; decrease c) right; decrease d) right; increaseThe carbonic acid equilibria are shown below. Tissues that are aerobically active produce CO2. This causes this equilibrium to shift to the ______, which causes the pH of the blood to ______. H+ + HCO3- <--> H2CO3 <--> H2O + CO2 a) right; increase b) right; decrease c) left; increase d) left; decrease
- A patient is hyperventilating. The "blowing off" of excessive carbon dioxide causes a decrease in blood H+ concentration. How can the carbonic acid buffering system function to correct this imbalance? CO2 + H2O → H2CO3 → H* + HCO3 O H2CO3 dissociates to form more H+ and raise pH. O HCO3- binds with H+ to form H2CO3 and raise pH. O H2CO3 dissociates to form more H+ and lower pH. O HCO3- binds with H+ to form H2CO3 and lower pH. O none of the aboveNormal body Normal body No change temperature (37 C) temperature (37C) 25. When the level of carbon dioxide in the blood is too high, the excess carbon dioxide reacts with water and produces carbonic acid. The carbonic acid causes the blood pH to become more acidic. When the blood pH becomes too acidic, chemoreceptors in the brain instruct the body to react and maintain homeostasis in blood pH. Which of these responses by the body would eliminate the excess carbon dioxide and help maintain homeostasis in the blood pH? Docrease in body Increaso in body temperaturo tomperature Shivering, vasoconstriction Thermoreceptors Norvo impuls0s sent to skin Hypothalamus Figure B a. Increasing the body temperature by shivering. b. Increasing glucose levels in the blood. c. Breathing more deeply and frequently. d. Decreasing the heart rate. 26. High blood glucose triggers cells in the pancreas to release the hormone insulin, which lowers blood glucose levels. Type 2 diabetes occurs when cells no…Dissolved oxygen levels are higher in calm bodies of water. True or False?
- Expand PPLO.If you hold your breath for a long time, body CO2 levels are likely to ____, and the pH of body fluids is likely to ____.a. increase; increaseb. decrease; increasec. increase; decreased. decrease; decreaseDuring a severe bout of pneumonia, Eduardo had difficulties breathing. His PaCO2 was elevated and he became acidotic. Describe how CO2 travels from the tissues to the lungs to be expelled from the body. In doing so, describe the various forms that CO2 takes along the way. Finally, describe how CO2 levels affect blood pH.