Chapter 19 - Integrated Physiology 1. The three systems...

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Integrated Physiology 1. The three systems that work together most closely to regulate blood pressure, osmolarity and pH are the _________ systems. a. urinary, respiratory and cardiovascular b. urinary, lymphatic and digestive c. respiratory, lymphatic and cardiovascular d. cardiovascular, digestive and urinary e. cardiovascular, integumentary and urinary 2. The kidneys can alter extracellular fluid volume and osmolarity by __________. a. changing the amount of water excreted b. changing the amount of sodium excreted c. both of these d. neither of these 3. The hormone that controls water excretion by the kidneys is __________. a. ADH b. aldosterone c. epinephrine d. ANP e. angiotensin 4. The stimuli for renal reflexes are __________. a. changes in blood pressure b. changes in osmolarity of body fluids c. thirst d. A and B e. A, B and C 5. The primary osmoreceptors are located in the __________. a. pons b. kidney c. stomach d. hypothalamus e. medulla 6. The principal cation in the ICF is __________. a. sodium b. potassium c. calcium d. magnesium e. chloride
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7. When plasma water is lost but electrolytes are retained, __________. a. the osmolarity of the ECF falls b. osmosis moves water from the ICF to the ECF c. both the ECF and the ICF become more dilute d. there is an increase in the volume of the ICF e. all of the above 8. When large amounts of pure water are consumed, __________. a. the ECF becomes hypertonic to the ICF b. a fluid shift occurs and the volume of the ICF decreases c. osmolarities of both ECF and ICF will be slightly lower d. the volume of the ECF will decrease e. the volume of the ICF will decrease 9. The hormone ADH __________. a. is secreted by the anterior pituitary gland in response to changes in blood osmolarity b. stimulates the kidneys to retain sodium ion c. stimulates water conservation at the kidneys d. causes the kidneys to produce a large volume of urine e. all of the above 10. When venous return is increased, stretch receptors in the atria of the heart are activated. This triggers __________. a. secretion of ADH b. inhibition of ADH secretion c. increased glomerular filtration d. decreased urine production e. increased thirst 11. When baroreceptors in the carotid and aortic bodies register increased blood pressure, this triggers __________. a. secretion of ADH b. inhibition of ADH secretion c. increased glomerular filtration d. decreased urine production e. increased thirst 12. The portion of the nephron which creates dilute urine is the __________. a.
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Chapter 19 - Integrated Physiology 1. The three systems...

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