Positive feedback is not common in the endocrine system and is self- ____.
Answer: self augmenting
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Applied Physiology
- Glucose enters the PCT via __________.
- In the respiratory response of the physiological delayed-action buffer system, CO2 mixes with water in the blood to form_________.
- Under normal conditions, 100% of filtered glucose, amino acid, lactic acid, water soluble vitamins, and other nutrients are reabsorbed in the first half of the PCT by ____________.
- In the phosphate buffer system, if pH falls, monohydrogen phosphate (HPO4 2-) acts as a weak acid.
- Facultative water reabsorption is regulated by ADH adapting to the body's needs if the individual is dehydrated or hydrated.
- The the carbonic acid-bicarbonate buffer system, if pH rises ______ functions as a weak acid adding hydrogen ions to restore the body's pH.
- About 90% of water reabsorption by the kidneys occurs with which of the following solutes?
- As blood flows through the systemic capillaries, CO2 is released from tissues into the RBC's, combines with H2O forming ________.
- Paracellular reabsorption occurs via ________.
- Hemoglobin is a good buffer and especially important during exercise, and falls under the category of a __________ buffer system.
- (T/F) Transport mechanisms are important for reabsorbing sodium ions, as well as other electrolytes, nutrients and water.
- __________ is when water and solutes in tubular fluid return to circulation by passing through the tubule.
- In the protein buffer system, when pH falls, ______ dissociates and acts like a base to restore the body's pH.
- Tubular reabsorption transfer materials from blood and tubule cells and helps control blood pH as well as elimination of metabolic and toxic waste.
- Buffer systems of the body prevent rapid, drastic changes in pH of the body fluid.
- In the autoregulation of GFR, which of the following is part of the renal autoregulation?
- The buffer system of the body are extremely effective on maintaining the body's pH within a very narrow range of __________.
- A normal adult produces roughly ______ liters of filtrate per day.
- Which of the following statement is true if there is an increase in hydrogen ions in the body's fluid?
- Which of the following NOT a mechanism that regulates glomerular filtration rate?
- Which one of the following increases hydrogen ion concentration in the body?
- Which formula gives a net filtration pressure of 10 mmHg?
- The normal pH of extracellular fluid is _________.
- Glomerular filtration depends on three main pressure and _______ oppose filtration at 30mmHg.
- The precise regulation of pH at the cellular level is necessary for survival.