How Fast Does Blood Travel Through an Arteriole?

  • Thread starter Thread starter eagles12
  • Start date Start date
  • Tags Tags
    Blood Speed
Click For Summary
SUMMARY

The speed of blood traveling through an arteriole can be calculated using the formula s = P / (vρ), where P is pressure, v is velocity, and ρ is the density of blood. Given that the diameter of the arteriole is 0.030 mm and the volumetric flow rate is 5.5 x 10^-6 cm³/s, the area (A) can be derived from the diameter to find the velocity (V). It is essential to note that speed is the magnitude of velocity, distinguishing it from the vector nature of velocity itself.

PREREQUISITES
  • Understanding of fluid dynamics principles
  • Knowledge of basic calculus for area and volume calculations
  • Familiarity with the concepts of velocity and speed
  • Basic understanding of blood properties, specifically density
NEXT STEPS
  • Calculate the cross-sectional area of the arteriole using the diameter
  • Explore the relationship between pressure, flow rate, and velocity in fluid dynamics
  • Learn about the properties of blood and how they affect flow rates
  • Investigate the differences between speed and velocity in physics
USEFUL FOR

Students studying biology or physics, particularly those focusing on cardiovascular dynamics, as well as educators seeking to explain fluid flow concepts in a biological context.

eagles12
Messages
76
Reaction score
0

Homework Statement



A typical Arteriole has a diameter of .030 mm and carries blood at the rate of 5.5* 10^-6 cm^3/s. What is the speed of the blood in an arteriole?

Homework Equations



s=P/vρ

The Attempt at a Solution



Blood is made of mostly water, so I used the same ρ as water (ρ=1000), and multiplied by the velocity given. I have the diameter, but I am not sure what do do with it or how to find the pressure.
 
Physics news on Phys.org
Volumetric flow is given by:

Q=A*V and has the units of volume per unit time. A is area, V is velocity

So, determine the velocity from the above equation.
 
I already have velocity, I am looking for speed
 
Speed is the magnitude of velocity. Velocity is a vector entity. It has both magnitude and direction. Speed is only the magnitude of velocity.
 

Similar threads

  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 2 ·
Replies
2
Views
3K
Replies
1
Views
6K
  • · Replies 3 ·
Replies
3
Views
4K
Replies
8
Views
1K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 1 ·
Replies
1
Views
8K
Replies
1
Views
2K
  • · Replies 1 ·
Replies
1
Views
7K
Replies
4
Views
5K