Question

The total blood volume of a human is 75 ml/kg. If the volumetric flow rate is the same in adults and children, how much more blood can flow through the venae cavae in a 70.0 kg adult versus a 20.0 kg child in 1 hour

Answer 1

The amount of blood that flows through the venae cavea of the adult is 3750 ml more than that of the child.

What is flow rate?:

This is the volume of fluid flowing in a vessel per unit time.

First, we need to get the volume of blood flowing through the venae cavae of the adult and the child in 1 hour, then subtract the volume of blood for the child from that of the adult.

Using,

• V = F'm................ Equation 1

Where:

• V = Volume of the blood
• F' = Flow rate
• m = mass of blood.

For the Adult,

Given:

• m = 70 kg
• F = 75 ml/kg

Substitute these values into equation 1

• V = 70(75)
• V = 5250 ml.

For the child,

Given:

• m = 20 kg
• F = 75 ml/kg

Substitute these values into equation 1 also

• V = 75(20)
• V = 1500 ml.

The amount of blood that flows more through the adult than the child is

• A = 5250-1500
• A = 3750 ml.

Hence, the amount of blood that flows through the venae cavea of the adult is 3750 ml more than that of the child.

Learn more about flow rate here: brainly.com/question/21630019