To discuss:
How to determine systolic pressure, diastolic pressure, and pulse pressure; how to estimate mean arterial pressure (MAP), and why MAP differs from head to foot.
Introduction:
In order to keep the blood flowing in the artery, the heart must pulsate pressure. This is referred to as blood pressure (BP). High blood pressure can lead to hypertension, and low blood pressure can lead to hypotension. This can be measured by using a sphygmomanometer. The sphygmomanometer is wrapped around the arm to take measurement of the blood pressure, as the brachial artery that passes through the heart is relatively close to the heart.
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Chapter 20 Solutions
LSC (CONCORDIA UNIV ST PAUL) BIO 315/316: B&N DPF Connect with APR and Phils Online Access for Anatomy and Physiology: The Unity of Form and Function 180 Day Access ENTRP
- A very short nursing student is asked to measure the blood pressure ofa very tall person. She decides to measure the blood pressure at the levelof the tall person’s foot while he is standing. What artery does sheuse? After taking the blood pressure, she decides that the tall person issuffering from hypertension because the systolic pressure is 200 mm Hg.Is her diagnosis correct? Why or why not?arrow_forwardfor its oxygen then it may die, forming rct. The severity of this condition depends on the precise location of the occlusion, which downstream tissues are involved, and how large an area of tissue dies. Use Figure 4.9 as a reference and list the flow of blood through both circuits in order, beginnng with the right atrium (don't forget to include the heart valves). 1. If an embolus breaks off in a systemic vein in the leg, it would be able to pass through: It would occlude: 2. If an embolus formed in the left ventricle, it would be able to pass through: 3. It would occlude: 4.arrow_forwardThe structures that supply the walls of blood vessels with blood area. venous shunts. d. vasa vasorum.b. tunic channels. e. coronary arteries.c. arteriovenous anastomoses.arrow_forward
- Rearrange these structures in the order in which blood passes through them; assume that the blood is about to leave the right atrium. Aorta Aortic semilunar valve Left ventricle Left atrium Lung capillaries Mitral valve Pulmonary semilunar valve Pulmonary arteries Right ventricle Superior/Inferior vena cava Tissues of the body Tricuspid valve Pulmonary trunk Pulmonary veinsarrow_forwardA 60-year-old woman receives a coronary angiogram following a myocardial infarction in order to evaluate the condition of her coronary circulation. Most blood draining from the heart wall (myocardium) will return to the heart through which of the following structures? Coronary sinus Superior vena cava Ascending aorta Pulmonary veins Inferior vena cavaarrow_forwardWhich vessels contribute most to altered systemic blood pressure when their smooth muscles contract or dilate,large muscular arteries,small muscular arteries,or arteriolesarrow_forward
- which blood vessel of the heart is responsible for distributing oxygenerated blood to the rest of the bodyarrow_forwardUse a flowchart to illustrate blood flow through systemic and pulmonary circulation, starting from theaorta and making one complete cyclearrow_forwardYou found this figure in an old physiology textbook, and you are trying to understand it. Please interpret and explain all the graphs and charts -AND-explain how it all fits together. Use the back of this page if you need extra room. Volume (ml) Pressure (mmHg) 120 100 60 40 80 40 120 20 80 O EKG P Q Heart sounds O R S Wh ① 0.2 → Systole + 2 Time (seconds) 0.4 T Artery Left ventricle 4 0.6 Pressure changes 0.8 Diastole P 5 Volume changes 00 250 300, In particular, consider how the EKG matches up with ventricular contraction. Be sure to explain this.arrow_forward
- Hydrostatic pressure forces plasma across capillary walls at venous end of capillary, and interstitial fluid enters arterial end of capillary by osmotic pressure. True or Falsearrow_forwardName the blood vessel and what type of blood runs through it? O pulmonary venule; deoxygenated blood pulmonary arteriole; oxygenated blood pulmonary arteriole; deoxygenated blood O pulmonary venule; oxygenated blood (a)arrow_forwardThe resistance to blood flow is greatest in thea. aorta. c. capillaries. e. veins.b. arterioles. d. venules.arrow_forward
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
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