Answer
427.5k+ views
Hint: Stroke volume is a term in cardiovascular physiology and is volume of blood pumped from the left ventricle per beat. Since stroke volume decreases in certain conditions and disease symptoms, determination of stroke volume gives an idea of the cardiac function.
Complete step by step answer:
- The stroke volume (SV) is a derivative of the cardiac output and is the volume of blood ejected by the left ventricle in one contraction or beat.
- Stroke volume for the average human being with 70 kg weight is 70 ml.
- It is calculated from an echocardiogram, which is an ultrasound of the heart. Here, ventricle volume is measured and the volume of the blood in the ventricle at the end of a beat is subtracted.
So, the correct answer is ‘70 ml’.
Additional information:
- Stroke volume is an important determinant of the cardiac output, which is the product of stroke volume and heart rate - the speed of heartbeat measured by beats per minute.
- Cardiac output is defined as the volume of blood being pumped by the left and right ventricle of the heart, per unit time.
- It is also used to calculate the ejection fraction, which is the volume of fluid ejected with each contraction. It is calculated by stroke volume divided by end-diastolic volume.
- The factors affecting the preload are distinguished as preload, contractility, and afterload.
Note:
- Stroke volume is 5 litres/min and 300 litres/hr.
- The volume increases during exercise.
- Men generally have higher stroke volumes than women due to the larger size of their heart.
Complete step by step answer:
- The stroke volume (SV) is a derivative of the cardiac output and is the volume of blood ejected by the left ventricle in one contraction or beat.
- Stroke volume for the average human being with 70 kg weight is 70 ml.
- It is calculated from an echocardiogram, which is an ultrasound of the heart. Here, ventricle volume is measured and the volume of the blood in the ventricle at the end of a beat is subtracted.
So, the correct answer is ‘70 ml’.
Additional information:
- Stroke volume is an important determinant of the cardiac output, which is the product of stroke volume and heart rate - the speed of heartbeat measured by beats per minute.
- Cardiac output is defined as the volume of blood being pumped by the left and right ventricle of the heart, per unit time.
- It is also used to calculate the ejection fraction, which is the volume of fluid ejected with each contraction. It is calculated by stroke volume divided by end-diastolic volume.
- The factors affecting the preload are distinguished as preload, contractility, and afterload.
Note:
- Stroke volume is 5 litres/min and 300 litres/hr.
- The volume increases during exercise.
- Men generally have higher stroke volumes than women due to the larger size of their heart.
Recently Updated Pages
Mark and label the given geoinformation on the outline class 11 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
When people say No pun intended what does that mea class 8 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Name the states which share their boundary with Indias class 9 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Give an account of the Northern Plains of India class 9 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Change the following sentences into negative and interrogative class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Advantages and disadvantages of science
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Trending doubts
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Which are the Top 10 Largest Countries of the World?
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference Between Plant Cell and Animal Cell
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
10 examples of evaporation in daily life with explanations
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Give 10 examples for herbs , shrubs , climbers , creepers
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Write a letter to the principal requesting him to grant class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
How do you graph the function fx 4x class 9 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)