Anatomy & Physiology
1st Edition
ISBN: 9781938168130
Author: Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher: OpenStax College
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Textbook Question
Chapter 25, Problem 21RQ
Which of these three paracrine chemicals cause vasodilation?
- ATP
- adenosine
- nitric oxide
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Which of the following causes endothelium-mediated vasodilation?
H+ accumulation
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Which of the following mediators causes vasodilation ?
Group of answer choices
Nitric oxide
Angiotensin II
Epinephrine
Vasopressin
Which factors cause vasodilation?
a decrease in O2
an increase in adenosine
a decrease in K+
an increase in CO2
an increase in pH
Chapter 25 Solutions
Anatomy & Physiology
Ch. 25 - Diabetes insipidus or diabetes mellitus would most...Ch. 25 - The color of urine is determined mainly by...Ch. 25 - Production of less than 50 mL/day of urine is...Ch. 25 - Peristaltic contractions occur in the ________....Ch. 25 - Somatic motor neurons must be ________ to relax...Ch. 25 - Which pan of the urinaiy system is not completely...Ch. 25 - The renal pyramids are separated from each other...Ch. 25 - The primary structure found within the medulla is...Ch. 25 - The right kidney is slightly lower because...Ch. 25 - Blood filtrate is captured in the lumen of the...
Ch. 25 - What are the names of the capillaries following...Ch. 25 - The functional unit of the kidney is called...Ch. 25 - ________ pressure must be greater on the capillary...Ch. 25 - Production of urine to modify plasma makeup is the...Ch. 25 - Systemic blood pressure must stay above 60 so that...Ch. 25 - Aquaporin channels are only found in the...Ch. 25 - Most absorption and secretion occurs in this part...Ch. 25 - The fine tuning of water recovery or disposal...Ch. 25 - Vasodilation of blood vessels to the kidneys is...Ch. 25 - When blood pressure increases, blood vessels...Ch. 25 - Which of these three paracrine chemicals cause...Ch. 25 - What hormone directly opposes the actions of...Ch. 25 - Which of these is a vasoconstrictor? nitric oxide...Ch. 25 - What signal causes the heart to secrete atrial...Ch. 25 - Which of these beverages does not have a diuretic...Ch. 25 - Progesterone can bind to receptors for which...Ch. 25 - Renin is released in response to ________....Ch. 25 - Which step in vitamin D production does the kidney...Ch. 25 - Which hormone does the kidney produce that...Ch. 25 - If there were no aquaporin channels in the...Ch. 25 - What is suggested by the presence of white blood...Ch. 25 - Both diabetes mellitus and diabetes insipidus...Ch. 25 - Why are females more likely to contract bladder...Ch. 25 - Describe how forceful urination is accomplished.Ch. 25 - What anatomical structures provide protection to...Ch. 25 - How does the renal poital system differ from the...Ch. 25 - Name the structures found in the renal hilum.Ch. 25 - Which structures make up the renal corpuscle?Ch. 25 - What are the major structures comprising the...Ch. 25 - Give the formula for net filtration pressure.Ch. 25 - Name at least five symptoms of kidney failure.Ch. 25 - Which vessels and what pail of the nephron are...Ch. 25 - Give the approximate osmolarity of fluid in the...Ch. 25 - Explain what happens to Na+ concentration in the...Ch. 25 - If you want the kidney to excrete more Na+ in the...Ch. 25 - What organs produce which hormones or enzymes in...Ch. 25 - PTH affects absorption and reabsorption of what?Ch. 25 - Why is ADH also called vasopressin?Ch. 25 - How can glucose be a diuretic?Ch. 25 - How does lack of protein in the blood cause edema?Ch. 25 - Which three electrolytes are most closely...
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- Sildenafil citrate (viagra) enhances vasodilation. Describe the mechanism of its action.arrow_forwardFor each of these chemicals—angiotensin II, aldosterone,antidiuretic hormone, and atrial natriuretic hormone—state where each is produced and how each affects thecirculatory systemarrow_forwardWhich of the following mechanisms will increase vasopressin release from the pituitary gland (either directly or indirectly)? Select all that apply. Shrinking of osmoreceptor cells in the brain. Swelling of osmoreceptor cells in the brain. O A large drop in plasma volume (>15% reduction). A large increase in plasma volume (>15% increase). O A positive sodium balance. O A negative sodium balance.arrow_forward
- A 1% to 2% shift in osmolality causes how much change in the circulating concentration of AVP? Twofold, Fourfold, Eightfold, Tenfold?arrow_forwardHow does the hormone Angiotensin II affect MAP? it increases CO by increasing HR and SV it increases MAP by causing rapid vasoconstriction it increases MAP by stimulating the kidneys to retain Na+ and therefore water which increases blood volume and therefore MAP it decreases MAP by causing systemic vasodilationarrow_forwardWhen the tempreture drops for the human skin "for example if I touch something cold or ice" , vasoconstration or vasodilation occures?arrow_forward
- there is a known cause of high blood pressure that occurs because of a reduced fluid flow that triggers RAAS and Na+ reaborption with increased blood volume and pressure. what is it?arrow_forwardAn increased erythropoietin (EPO) output by the kidneys would lead to all of the following except Increased blood osmolarity Increased RBC production Increased blood viscosity Increased hypoxemia Increased hematocritarrow_forwardWhich of the following is an effect of ADH interaction with the vasopressin receptor? Answers A - D A Increased expression of Na+/K+-ATPase on the basolateral membrane of the distal segments Increased expression of ENAC on the apical membrane of the distal segments Increased expression of aquaporin 2 on the apical membrane of collecting duct cells Increased expression of aquaporin 3 on the basolateral membrane of collecting duct cellsarrow_forward
- When Jay had diarrhea his blood pressure dropped so his body took an action to compensate. Which one of the followings would better describe the mechanism Question 64 options: BP drop affects blood vessels baroreceptors and activates renin-angiotensin-aldosterone mechanism leading to increase ADH release BP drop affects blood vessels baroreceptors and activates renin-angiotensin-aldosterone mechanism leading to decrease ADH release BP drop affects blood vessels baroreceptors and inhibit renin-angiotensin-aldosterone mechanism leading to decrease ADH release BP drop affect blood vessels baroreceptors and inhibit renin-angiotensin-aldosterone mechanism leading to increase ADH releasearrow_forwardVasoconstriction and vasodilation help maintain our body temperature within a normal Explain how this happens.arrow_forwardDescribe the response of the renin-angiotensinaldosterone hormone mechanism to a decrease in bloodpressure. How are extracellular fluid volume and urinevolume affected?arrow_forward
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