Home
Class 11
BIOLOGY
In a cardiac output of 5250 mL per minut...

In a cardiac output of 5250 mL per minute, with 75 heartbeats per minute, the stroke volume is

A

(a) 60 mL

B

(b) 80 mL

C

(c) 55 mL

D

(d) 70 mL

Text Solution

Verified by Experts

The correct Answer is:
D
Cardiac output = Stroke `xx` heart beats per minute
`:.` Stroke volume `= ("Cardiac output")/("Heart beats per minute")`
`=(5250)/(75)=70` mL
Promotional Banner

Similar Questions

Explore conceptually related problems

A patient's chart reveals that he has a cardiac output of 7500mL per minute and a stroke volume of 50 mL. What is his pulse rate? (in beats / min)

The human heart beats 72 times per minute.

What is Minute Respiratory Volume?

What is the minute respiratory volume of man?

A spherical balloon is filled with 4500p cubic meters of helium gas. If a leak in the balloon causes the gas to escape at the rate of 72pi cubic meters per minute, then the rate (in meters per minute) at which the radius of the balloon decreases 49 minutes after the leakage began is (1) 9/7 (2) 7/9 (3) 2/9 (4) 9/2

Assertion : The cardiac output of an ordinary man and of an athlete is the same Reason : It is impossible to alter the stroke volume as well as heart rate.

A compass needle oscillates 20 times per minute at a place where the dip is 45^@ and 30 times per minute where the dip is 30^@ . Compare the total magnetic field due to the earth at the two places.