Anatomy & Physiology: An Integrative Approach
2nd Edition
ISBN: 9780078024283
Author: Michael McKinley Dr., Valerie O'Loughlin, Theresa Bidle
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 20.3, Problem 10WDYL
Which two pressures have the largest values? Explain how each of these specifically influences filtration and reabsorption.
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Students have asked these similar questions
List and describe the three filtration barriers that substances leaving the plasma must pass through before entering the tubule lumen.
How do diuretics work to reduce excess fluid in the body? Describe the mechanisms of action for three types of diuretics.
Which is TRUE of the RAAS pathway?
angiotensin Il directly leads to vasoconstriction and stimulates
aldosterone which promotes Na+ reabsorption at the cortical
collecting duct
ANP stimulates the RAAS pathway, while ADH/vasopressin inhibits
the RAAS pathway
increased plasma volume directly puts extra pressure on the afferent
arteriole and indirectly increases pressure in the distal tubule, both of
which lead to stimulation of renin release
angiotensin Il promotes activation of the parasympathetic system
which decreases GFR
low plasma Na+ is sensed by the proximal tubule and triggers release
of renin from JGA cells
Chapter 20 Solutions
Anatomy & Physiology: An Integrative Approach
Ch. 20.1 - What are three differences in anatomic structure...Ch. 20.1 - Prob. 2WDYLCh. 20.1 - What type of capillary is the most permeable, and...Ch. 20.1 - How does a vein serve as a blood reservoir?Ch. 20.1 - Prob. 5WDYLCh. 20.2 - In which type of vessel is blood flow the slowest?...Ch. 20.3 - What substances are transported by diffusion...Ch. 20.3 - Prob. 8WDYLCh. 20.3 - How does the hydrostatic pressure change from the...Ch. 20.3 - Which two pressures have the largest values?...
Ch. 20.3 - If these lymph vessels were nonfunctional, what...Ch. 20.4 - In what ways is angiogenesis stimulated in...Ch. 20.4 - Prob. 13WDYLCh. 20.4 - What relationship exists between metabolic...Ch. 20.4 - Prob. 15WDYLCh. 20.5 - Prob. 16WDYLCh. 20.5 - Prob. 17WDYLCh. 20.5 - How is the small pressure gradient in veins...Ch. 20.5 - How is the pressure gradient to move blood through...Ch. 20.5 - How is resistance defined?Ch. 20.5 - What are the three factors that alter resistance?...Ch. 20.5 - Prob. 22WDYLCh. 20.6 - Prob. 23WDYLCh. 20.6 - What is the initial change to blood pressure when...Ch. 20.6 - Prob. 25WDYLCh. 20.6 - Prob. 26WDYLCh. 20.7 - Which organs have an increased proportion of...Ch. 20.8 - Prob. 28WDYLCh. 20.8 - Prob. 29WDYLCh. 20.9 - Prob. 30WDYLCh. 20.9 - Prob. 31WDYLCh. 20.10 - Prob. 32WDYLCh. 20.10 - Prob. 33WDYLCh. 20.10 - Prob. 34WDYLCh. 20.10 - What are the systemic arteries that supply...Ch. 20.10 - Prob. 36WDYLCh. 20.10 - Prob. 37WDYLCh. 20.10 - Prob. 38WDYLCh. 20.11 - Prob. 39WDYLCh. 20.11 - Prob. 40WDYLCh. 20.11 - Prob. 41WDYLCh. 20.11 - Prob. 42WDYLCh. 20.12 - List the five structures of fetal circulation, and...Ch. 20.12 - Prob. 44WDYLCh. 20 - _____ 1. Which of the following is not a...Ch. 20 - _____ 2. Which statement is accurate about veins?...Ch. 20 - _____ 3. Vasa vasorum are found in the tunica...Ch. 20 - _____ 4. Which of the following decreases...Ch. 20 - _____ 5. The __________ is a type of vessel with...Ch. 20 - _____ 6. An increase in _____ will result in an...Ch. 20 - Prob. 7DYKBCh. 20 - _____ 8. Velocity of blood flow is the slowest in...Ch. 20 - _____ 9. Blood pressure is regulated by the a....Ch. 20 - _____ 10. Name the correct pathway that blood...Ch. 20 - Prob. 11DYKBCh. 20 - Prob. 12DYKBCh. 20 - Explain the difference between hydrostatic and...Ch. 20 - Write the formula for determining net filtration...Ch. 20 - Prob. 15DYKBCh. 20 - Prob. 16DYKBCh. 20 - Briefly explain how changes in cardiac output,...Ch. 20 - Compare how the cardiac center and vasomotor...Ch. 20 - Prob. 19DYKBCh. 20 - What postnatal changes occur in the heart and...Ch. 20 - If a patient has cirrhosis of the liver and is...Ch. 20 - Prob. 2CALCh. 20 - Prob. 3CALCh. 20 - Prob. 4CALCh. 20 - Prob. 5CALCh. 20 - Prob. 1CSLCh. 20 - Arteries tend to have a lot of vascular...Ch. 20 - Explain why an overweight individual with high...
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- Glomerular filtration is affected by forces that oppose and promote filtration. What are these forces and explain the theory behind net filtration pressure?arrow_forwardDescribe the response of the renin-angiotensinaldosterone hormone mechanism to a decrease in bloodpressure. How are extracellular fluid volume and urinevolume affected?arrow_forwardDescribe two mechanisms by which the body regulates filtration rate.arrow_forward
- Explain the action of ADH (vasopressin) to increase water reabsorption.arrow_forwardSuppose a person consumed a high-protein diet. What effect might this have on filtrate pressure and volume?arrow_forwardDrugs that increase urine flow (diuretic drugs) are often employed in the treatment of hypertension (high blood pressure) or other disease states. Three physiological categories of such drugs are ones that (i) function as loop diuretics, (ii) inhibit the action of aldosterone, and (iii) block Na+ channels in the collecting ducts. Explain why each of these categories would be expected to increase Na+ excretion and urine flow.arrow_forward
- This diagram illustrates which of the following Choose from the following: (A) secretion of hydrogen via Na+/H+ exchange ions by the proximal convoluted tubule (B) reabsorption of bicarbonate ions by intercalated cells (A) in the collecting duct (C) secretion of H+ by H+K+/ATPase pumps in the intercalated cells (A) in the collecting duct (D) A and B (E) all of the abovearrow_forwardPlease help me with these questions, more than one answer may be correct for each:1) Which of the following statements are true about the renin-angiotensin-aldosterone axis? A) Angiotensin II stimulates production of aldosterone, which increases sodium reabsorption B) Renin converts angiotensinogen to angotensin I C) Angiotensin II stimulates production of vasopressin, which increases aquaporins in the collecting duct D) Vasopressin decreases thirst E) Renin lowers GFR 2) The purpose of excretion is to A) maintain internal pH B) remove harmful substances C) maintain plasma volume D) maintain osmotic balance E) maintain internal solute concentrationarrow_forwardExplain the concept of a countercurrent multiplier system and how it works in the kidneys. What is the importance of this system to the function of the kidneys?arrow_forward
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