States)Show your workl1. Juan has a cardiac output (CO) of 6000 mL per minute at rest. He has a resting heartrate (HR) of 60 beats/min. What is his stroke volume?I2. Ejection fraction is the percentage of blood pumped out of the ventricles (EDV) witheach heartbeat (see formula below). If Juan's EDV is 150 mL, what is his ejectionfraction?Ejection Fraction =Stroke volumeEnd diastolic volumeX1003. Juan went for a walk and his heart rate climbed to 110 beats/min. his EDV decreasedto 125 mL and his ejection fraction was 80%. What was his cardiac output?E Focus

Answered: Image /qna-images/answer/05cad624-a7cc-4c99-b920-338f34b3b491.jpg

Answered: Show your workl 1. Juan has a cardiac…

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter9: Cardiac Physiology

Section: Chapter Questions

Problem 1TAHL

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Compute for cardiac output if heart rate is 70bpm and stroke volume is 70ml. 140 1000 1 4900
Exercise: Concept diagram. Trace the flow of blood through the heart. Fill in the diagram using the terms in the box. Write your answer on a separate sheet of paper. Pulmonary veins Left ventricle Bicuspid Valve Superior and inferior vena Aorta Pulmonary arteries Left atrium Right atrium Tricuspid valve Lungs cavae Right ventricle K. sEO ILOIO CTY IN H. G
ERCISE 36 Electrical Activity of the Heart Use this grid to graph the heart rates observed after exercise. Be sure to label your graph completely and accurately. bon Put in Order (rearrange these heart structures in the order through which electrical signals are conducted in a single cardiac cycle) Put in Order 1. atrial myocardium AV bundle branches nim 2. AV bundle AV node subendocardial (Purkinje) fibers SA node 3. 4. 5. ventricular myocardium 6. Fill-in (complete each statement with the correct term) 7. 1. Relaxation of a heart chamber is called _?_. 2. Contraction of a heart chamber is called _?_. 3. The portion of the ECG that represents ventricular repolarization is the _?. 4. Leads I, II, and III together are called the _?_ leads, or appendicular leads. 5. ? is the condition of elevated heart rate. Fill-in 1. 2. 3. 4. 5. a 0010 bu Floouior Inc All rights reserved.
Exercise: Concept diagram. Trace the flow of blood through the heart. Fill in the diagram using the terms in the box. Write your answer on a separate sheet of paper. Tricuspid valve Lungs Pulmonary arteries Pulmonary veins Left ventricle Bicuspid Valve Aorta Right atrium Left atrium Superior and inferior vena Right ventricle cavae K. sBO ILOILO CUY IN Figure 5. Human Heart Diagram
Describe how cardiac performance is measured in cardiac output. In your answer, be sure to describe the role of stroke volume (SV) and HR by defining each and discussing factors that influence SV in particular both during acute exercise and following chronic exercise training.
Stroke volume is equal to the ______. A amount of blood pumped in a single beat by both ventricles combined B amount of blood in the right (or left) ventricle at the end of diastole minus the amount of blood in the right (or left) ventricle at the end of systole C end systolic volume minus the end diastolic volume D amount of blood pumped by the heart in one minute
Component Amplitude(mV) Duration (s) P wave 0.046 0.07 QRS complex 0.839 0.08 T wave 0.061 0.2 Describe the physiological events in the heart muscle represented by each ECG component (the P wave, the QRS complex, and T wave). Why does the QRS complex have the largest amplitude?
Canvas ← × O During stroke volume, the pressure in the ventricles forces AV and semi-lunar valves open D O True O False Question 41 X The sound is heard during ventricular systole O True O False Question 42 To calculate EDV, you must sum SV and ESV O True O False
The end systolic volume from an individual’s heart was found to be 50 ml, the end diastolic volume was found to be 110 ml and the heart rate was 90 bpm. What is this individual’s stroke volume, ejection fraction and cardiac output (C.O)? Group of answer choices SV = 60 ml Ejection Fraction = 50% C.O = 3.4 l/min SV = 110 ml Ejection Fraction = 52% C.O = 4.4 l/min SV = 60 ml Ejection Fraction = 55% C.O = 5.4 l/min SV = 160 ml Ejection Fraction = 70 % C.O = 6.4 l/min
4.4. On the circulatory system, what are the correct statements? PHYSIOLOGY_advanced (OJO) Pacemaker cells of the heart are neurons with a stable resting membrane potential. Pacemaker cells of the sinus node, located at the left atrium, determine the heart beat frequency. Cardiac output is a function of the heart beat frequency and the stroke volume. The Frank-Starling mechanism allows coupling of the venous return with the stroke volume. Within each capillary bed there is a net loss of liquid to the extracellular space; this imbalance depends on the hydrostatic pressure and the colloid osmotic pressure gradients.
What are you feeling when you feel your pulse? Measure your pulse rate for 10 s and for 1 min. Is there a factor of 6 difference?
Cardiac output increases during exercise due to an increase in both heart rate and stroke volume. Which of the following contribute to this increase in stroke volume? (Select all that apply). Constriction of veins by the sympathetic nervous system O The increase in heart rate directly increases filling time Increased stretching of the cardiac myocytes due to increased EDV O Increased sympathetic stimulation of the ventricles O Withdrawn (decreased) parasympathetic stimulation of the ventricles

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