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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Chapter 20, Problem 29CTQ
Cocaine use causes vasoconstriction. Is this likely to increase or decrease blood pressure, and why?
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Chapter 20 Solutions
Anatomy & Physiology
Ch. 20 - Watch this video...Ch. 20 - Listen to this CDC podcast...Ch. 20 - The endothelium is found in the ________. tunica...Ch. 20 - Nervi vasorum control ________. vasoconstriction...Ch. 20 - Closer to the heart, arteries would be expected to...Ch. 20 - Which of the following best describes veins? thick...Ch. 20 - An especially leaky type of capillary found in the...Ch. 20 - In a blood pressure measurement of 110/70, the...Ch. 20 - A healthy elastic artery ________. is compliant...Ch. 20 - Which of the following statements is true? The...
Ch. 20 - Slight vasodilation in an arteriole prompts a...Ch. 20 - Venoconstriction increases which of the following?...Ch. 20 - Hydrostatic pressure is ________. greater than...Ch. 20 - Net filtration pressure is calculated by ________....Ch. 20 - Which of the following statements is true? In one...Ch. 20 - Clusters of neurons in the medulla oblongata that...Ch. 20 - In the renin-angiotensin-aldosterone mechanism,...Ch. 20 - In the myogenic response, ________. muscle...Ch. 20 - A form of circulatory shock common in young...Ch. 20 - The coronary arteries branch off of the ________....Ch. 20 - Which of the following statements is true? The...Ch. 20 - Arteries serving the stomach, pancreas, and liver...Ch. 20 - The right and left brachiocephalic veins ________....Ch. 20 - The hepatic portal system delivers blood from the...Ch. 20 - Blood islands are ________. clusters of...Ch. 20 - Which of the following statements is true? Two...Ch. 20 - The ductus venosus is a shunt that allows...Ch. 20 - Arterioles are often referred to as resistance...Ch. 20 - Cocaine use causes vasoconstriction. Is this...Ch. 20 - A blood vessel with a few smooth muscle fibers and...Ch. 20 - You measure a patients blood pressure at 130/85....Ch. 20 - An obese patient comes to the clinic complaining...Ch. 20 - A patient arrives at the emergency department with...Ch. 20 - True or false? The plasma proteins suspended in...Ch. 20 - A patient arrives in the emergency department with...Ch. 20 - Nitric oxide is broken down very quickly after its...Ch. 20 - Identify the ventricle of the heart that pumps...Ch. 20 - What organs do the gonadal veins drain?Ch. 20 - What arteries play the leading roles in supplying...Ch. 20 - All tissues, including malignant tumors, need a...Ch. 20 - Explain the location and importance of the ductus...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Define the term vasoconstriction?arrow_forwardSympathetic stimulation of the veins Causes vasodilation and an increase in stroke volume Causes vasodilation and a decrease in stroke volume Causes vasoconstriction and a decrease in stroke volume Causes vasoconstriction and an increase in stroke volumearrow_forwardCharacterize the following into: A. Factors that increase blood pressureB. Factors that decrease pressure 1. Decreased arterial diameter 2. Increased total vessel length 3. Increased vessel elasticity 4. Decreased plasma epinephrine 5. Decreased blood volume 6. Decreased plasma angiotensin 7. Increased stroke volume 8. Increased plasma ADH 9. Decreased blood viscosity 10. Increased parasympathetic stimulationarrow_forward
- explain how/why beta-blockers and ACE inhibitors would work to reduce blood pressure (ie, what ASPECT of blood pressure is affected, and how is it affected)arrow_forwardWhen a heart is transplanted into a patient, it is not possible to connect autonomic neurons from the medullary cardiovascular centers to the new heart. Will such a patient be able to increase cardiac output during exercise? Hint: Recall the effects of circulating catecholamines and changes in venous return on cardiac output.arrow_forward1) After exercising, why do some people return to a normal pulse rate quicker than others? 2) What are 4 factors that may increase one's pulse rate? 3) Why might a common cold affect pulse rate readings?arrow_forward
- Why is afterload important to cardiac function?arrow_forwardWhat effect would have cardiac arrhythmias, such as acute atrial fibrillation on cardiac output and stroke volume? How would be venous return affected or not?arrow_forwardIdentify the most commonly used antihypertensives that can produce orthostatic hypotension. Which of the drugs affecting the sympathetic nervous system can also cause bradycardia? Describe the most significant adverse effects of direct acting vasodilators. Compare their effects to phosphodiesterase inhibitors.arrow_forward
- The following medications are used to treat an exacerbation of congestive heart failure. Each one of them is actually used to counteract mechanisms the body has naturally set in place in response to a drop in blood pressure and presumed drop in tissue perfusion. For each medication, explain its affect(s) on A, B, and C. If you feel it has no effect on a particular parameter, then say "no effect". Specifically for each: A) affect on TPR (total peripheral resistance) and how/why it changes it B) affect on cardiac output (contractility, heart rate, stroke volume) and how/why it changes it C) blood volume/pressure and how/why it changes it ACEIs (ACE inhibitors) Beta blockers Digoxin Nitrates (nitroglycerin, isosorbide) Diuretics like Lasixarrow_forwardExplain how Cardiac output is controlled and affected by the following factors:1. the atrial and ventricular reflexes 2. the autonomic nervous system 3. hormones 4. blood ion concentrations 5. emotionsarrow_forwardthe herbal supplements bitter orange, also known as synephrine, mimics the effects of neurotransmitters on the SNS on the heart and blood vessels serving the abdominal viscera and skin. what effect do you think this would have on the blood pressure? Considering this, do you think this drug should be given to people with hypertension (high blood pressure)?arrow_forward
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