2) It was stated that the cardiac cycle is 0,8 s, the phase of isometric contraction - 0,08 s, and the ejection period - 0,33 s. Estimate values of these parameters. In what cases can it change in such a way?

Q: 25. Compare the contraction of a single cardiac muscle fiber to a skeletal muscle fiber in terms of…

A: Muscle is one of the tissue types in the body that brings about contraction and relaxation. Muscle…

Q: 14. Assume that a string is tied around the heart at the level shown in the diagram by the red line…

A: Introduction: Human's and frog's circulatory system is similar, comprising one circuit that brings…

Q: Cardiac output increases during exercise due to an increase in both heart rate and stroke volume.…

A: The cardiovascular system has an important role in regulating homeostasis in the human body by…

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Q: Womersley number (a) of a human aorta is 20 and for the rabbit aorta is 17, the blood density is…

A: Given information For human aorta Womersley (αh) = 20 Viscosity (μh) = 0.0035 Ns/m2 Diameter= 2 cm=…

Q: Leaky Na+ channels in the cells of the SA Node do which of the following?   a-allow a slow…

A: d-allow a slow depolarization that eventually reaches the threshold for voltage-gated Ca2+ channels.

Q: During the Cardiac Contraction cycCle, EARLY ventricular systole is characterised by

A: ventricular systole- It is a phase of cardiac cycle in this the left and right ventricles contract…

Q: 1. You are a lead engineer in a cGMP facility that develops and delivers tissue engineering…

A: Injectable engineering solutions must be capable of supporting LV wall and avoid post myocardial…

Q: 24. When given an image of a cardiac contractile cell, such as the one belo describe the steps that…

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Q: Table 2: Resting and Exercising Cardiac Cycle Length, EDV, and ESV Resting Values Exercising Values…

A: The experiment takes three subjects and measures their resting and exercise values of three cardiac…

Q: Based on the results shown in Figure 3, was there a significant difference in mean change of heart…

A: Yes.Based on the the results shown on Figure 3,there is a significant difference in mean change of…

Q: In which of the following models of the body is considered to be composed of several compartments?…

A: Introduction Pharmacokinetic (PK) models are mathematical tools that can be used to estimate drug…

Q: Cells in the body have the ability to undergo a transiet depolarization and repolarization. A. Plot…

A: The heart contracts and relaxes to pump blood throughout the body. The contraction is controlled by…

Q: Describe the main theories for the termination of calcium sparks in the cardiac muscle excitation…

A: The answer is well explained above

Q: 1. The source of the electrical currents that you measured on the skin throughout a normal…

A: Note: According to the given guidelines, we are supposed to answer only one question (1st question).…

Q: Which of the following is/are true for the ejection phase of the cardiac cycle? Check all that…

A: For a single complete heartbeat, the pattern of the heart's contraction and relaxation is referred…

Q: 1. Explain the Frank-Starling law of the heart.

A: Frank-starling Law Of The Heart. Three important definitions ; End diastolic volume - it is the…

Q: Table 2. Ventricular Systole and Diastole Condition Duration in seconds (Delta T) Condition Duration…

A: This is cariology question. Here we must understand the concept of how heart dynamics changes with…

Q: Why is a high resting BP considered a risk for exercise testing? Based on your knowledge of BP…

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Q: heart failure is unable to climb a flight of stairs without experiencing dyspnea.

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Q: From the experimental activity for PhysioEX Which of the following forms the (Y) axis of this graph…

A: Given: From the given experiment of physioEX, we need to find which of the following forms the X and…

Q: A B 0 0 3 2 3 5 Time (msec) 5 Time (msec) 7 7 TO 10

A: Oscilloscope tracing in A and B showed a major difference in the rate of contractile activity.

Q: 3. Resting and exercising ESV a. What was the average resting ESV? b. What was the average…

A: Human heart is vital organ in the circulatory system containing multiple vessels like vein ,…

Q: Which of the following statements about Ca2+ handling in cardiac contractile cells is FALSE?     a.…

A: In our body, there are 3 types of muscle cells such as Skeletal muscle, Smooth muscle and Cardiac…

Q: What is occurring during isovolumetric relaxation during the cardiac cycle? O The ventricles are…

A: Cardiac cycle is defined as the sequence of coordinated events taking place in the heart during each…

Q: Explain the protocol for administering a clinical exercise test. What are the normal heart rate and…

A: Administering a clinical exercise test includes a standardized protocol planned to survey…

Q: Compare heart rate during supine and seated positions. What explains any differences you might…

A: Heart rate can be outlined as the speed of a human heart at which it beats. It can be measured by…

Q: Resting Values Exercising Values Cardiac cycle length (msec) EDV(mL) ESV(mL) Cardiac cycle length…

A: Stroke volume is the amount of blood ejected from the ventricle with each cardiac cycle. The cardiac…

Q: difference

A: The Electrophysiology studies called as EPS were usually performed to diagnose the arrhythmia and…

Q: 0. Early defibrillation is critical for individuals with sudden cardiac arrest for the following…

A: Defibrillation : It involves delivering a high intensity electrical charge inorder to depolarize the…

Q: 1. What are some examples of arrhythmias that can be seen on a rhythm strip?  2. What additional…

A: Arrhythmia also called as irregular heartbeats. This occurs when the heart beats too fast or slow.…

Q: What is the Frank-Starling law and how might it be affected by changing the heart rate in our…

A: Cardiac output is defined as the volume of blood pumped out of the heart by the ventricles per…

Q: 2. It is desired to examine the kinetic properties of voltage-dependent potassium channels in a…

A: The voltage-dependent inhibition refers to the ability of the potassium channels to close or reduce…

Q: If the cardiac cycle is .86 sec what is the heart rate? Explanation

A: Cardiac cycle is the interval between  beginning of one heartbeat to that of the next. It consists…

Q: In the first laboratory exercise, we measured a person's pulse. Pulse is often graphed in different…

A: Heart rate (beats per min) = 60/ pulse interval (sec) or in case B for example  Pulse interval is…

Q: Describe how cardiac performance is measured in cardiac output. In your answer, be sure to describe…

A: Cardiac performance is commonly measured by the cardiac output, which is the amount of blood pumped…

Q: Given the following information, calculate cardiac output: R-R interval = 0.6 second, EDV = 160 mL,…

A:

Q: QUESTION 2 During ventricular systole, The AV valves are open and the semilunar valves are closed…

A: The cardiac cycle is the duration that starts with atrial contraction ending with ventricular…

Q: our client (53 years old) has a resting heart rate of 58bpm. If the desired CRF int vas 78% of heart…

A: HEART RATE RESERVE :-  its the maximum heart rate minus resting heart rate  MAXIMUM HEART RATE :- it…

Q: +52 mv 4 4 -96 mV 200 ms The diagram is a tracing of the heart's action potential. Use this diagram…

A: Action potential is the sudden change in membrane potential of cardiomyocyte of heart by the…

Q: Using Figure 4 as a reference, explain whether there was a difference in the resting heart rates of…

A: The pulse represents the heart rate, or how many times the heart beats in one minute. Pulse rates…

Q: What type of nonparametric test should be used to evaluate the effectiveness of an exercise program…

A: The pressure extered by blood against the walls of the arteries is called blood pressure. The normal…