Human Physiology: An Integrated Approach (8th Edition)
8th Edition
ISBN: 9780134605197
Author: Dee Unglaub Silverthorn
Publisher: PEARSON
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Textbook Question
Chapter 25.3, Problem 2CC
In Figure 25.8b, why does the line for mean blood pressure lie closer to diastolic pressure instead of being evenly centered between systolic and diastolic pressures? (Hint: What is the equation for calculating mean blood pressure?)
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If someone's systolic pressure is 138 and their diastolic
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What is the difference between a systolic and a diastolic pressure reading? is a blood pressure of 180/ 110 within the normal range?
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1) Blood pressure is measured with a
2) What is the average normal blood pressure for adults?
Label which number is the systolic pressure and which is the diastolic pressure.
3) Describe the exact location you should place the blood pressure cuff
4) Identify three positions of the patient to obtain a BP.
5) How is the blood pressure recorded?
6) Describe the three major factors that may affect blood pressure.
7) What problems can result from high blood pressure Or (HYPERTENSION)?
8) What problems can result from low blood pressure OR (HYPOTENSION)?
9) What IS the effect of exercise on BP? How does the body benefit from this change in BP during exercise?
10) How would the BP of an anxious patient visiting a doctor be different than if the patient is calm?
11) In atherosclerosis, plaque builds up inside the arteries. How would this affect BP? Is this an example of…
Chapter 25 Solutions
Human Physiology: An Integrated Approach (8th Edition)
Ch. 25.2 - If venous PO2 decreases as exercise intensity...Ch. 25.3 - In Figure 25.8b, why does the line for mean blood...Ch. 25.5 - The active vasodilator nerves to the skin secrete...Ch. 25 - Name the two muscle compounds that store energy in...Ch. 25 - Prob. 2RQCh. 25 - Prob. 3RQCh. 25 - Prob. 4RQCh. 25 - Prob. 5RQCh. 25 - What is meant by the term oxygen deficit, and how...Ch. 25 - Prob. 7RQ
Ch. 25 - In endurance events, body temperature can reach...Ch. 25 - Prob. 9RQCh. 25 - Prob. 10RQCh. 25 - Prob. 11RQCh. 25 - Prob. 12RQCh. 25 - Match the following brain areas with the...Ch. 25 - Specify whether each of the following parameters...Ch. 25 - Why doesnt increased venous return during exercise...Ch. 25 - Diagram the three theories that explain why the...Ch. 25 - Prob. 17RQCh. 25 - Explain how exercise decreases blood glucose in...Ch. 25 - Prob. 19RQCh. 25 - Prob. 20RQCh. 25 - The following graph shows left ventricular...
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- In the calculation of the heart rate using the number 300 method in the ECG, where did the number 300 come from? Why exactly was this method adopted?arrow_forwardIn a blood pressure reading of 120/80, the 120 represents and the 80 represents . (a) diastolic pressure; systolic pressure (b) pulse pressure; mean arterial pressure (c) systolic pressure; diastolic pressure (d) mean arterial pressure; pulse pressurearrow_forwardDefine cardiac output in words and with a simple mathematical formula.arrow_forward
- why is the "lub" sound (S1) recorded around the peak of the QRS complex in an ECG?arrow_forwardBlood Flow (BF)= (diff. in) Pressure (P) /Resistance (R) Assign these numbers to the equation above: If 6/3=2, when you increase 3, what happens to 6 in order to get 2 to stay the same?arrow_forwardI need to calculate the approximate heart rate based on the given ECG results, but I can't get how to determine the length of time between two consecutive R waves. What I see, it's one second between the two highest waves (I suppose they are R waves). But it means the heart rate should be 60 beats per minute, but there is no option for this answer. Teach me how to determine correctly the length of time between two consecutive R waves.arrow_forward
- while a typical ECG tracing is shown, many things can alter and be perfectly normal for that individual. list some of the factors that change the standard tracing:.......?arrow_forwardMean arterial pressure is determined by (A) adding the systolic pressure to diastolic pressure and dividing by two (B) subtracting diastolic pressure from systolic pressure and multiplying by two (C) adding 1/3 of the pulse pressure to diastolic pressure (D) adding 1/3 of pulse pressure to systolic pressure (E) adding systolic and diastolic pressure together / dividing by two / adding 1/3 of the pulse pressurearrow_forward200 Curve 1 175 Curve 2 150 125 Curve 3 100 75 50 25 50 100 150 200 250 300 350 400 LV End Diastolic Volume (mL) Use the information in this paragraph and the image above to answer the question below. This figure shows the relationship between EDV and SV. Curve 2 is representatíve of a normal individual sitting on a bike, resting. There are two other curves illustrated and there are multiple points landmarked with a "o" and the letters "A to F". You can assume that the only changes in relevant variables are described in each question. If a variable is not mentioned you can assume that it has not changed. The starting point is "A". Select an appropriate pointif there was an increase in cardiac inotropy. 23 D. Stroke Volume (mL)arrow_forward
- a) A consequence of the Frank-Starling law of the heart is that the outputs of the right and left ventricles match. Explain why this is important and how this match is made.b) The excitation-contraction matching mechanism within the heart muscle is different from that of the skeletal muscle. How might these differences be related to the difference between action potentials in cardiac muscle and skeletal muscle?arrow_forward4) A) Calculate the Systolic Pressure of a 65 years old man if the diastolic blood pressure is 90 mmHg and stroke volume of 70 ml/beat. Total Peripheral Resistance is 19mmHg.min/L. Assume person is healthy and has a normal heart rate. B) Calculate Left ventricular end-diastolic volume (LVEDV) when the mean ejection fraction is 80 % ?arrow_forwardThe patient cole is sitting on a chair. Suppose he raises his arm for a blood pressure measurement, with the cuff placed 10 cm below his heart. (a) How much of an error (difference in pressure) in mmHg does this introduce in the measurement? Assume that the blood is static for simplicity. The density of blood is 1050 kg/m3. AP = (b) If the systolic & diastolic blood pressures from the patient's heart is 125 & 85 mmHg, what will the cuff's pressure reading be? & (c) Describe a way to measure cole blood pressure accurately. 3arrow_forward
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