The human systemic capillary bed has a mean blood pressure of about 30 mmHg and holds about 6.0% of the total body blood volume. Its residual volume is about 1.0% of the total blood volume. (a) Estimate its total compliance.
Added by Jose Carlos C.
Step 1
Let's think step by step. Show more…
Show all steps
Your feedback will help us improve your experience
Sri K and 62 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
The blood pressure difference across a capillary in a human body is approximately 22 torr. Assume that a human body contains 1 x 10^10 capillaries with an average length of 8 x 10^-4 m and an average diameter of 7 x 10^-6 m. Although blood is a non-Newtonian fluid and contains red blood cells with diameter near 7 x 10^-6 m, assume that a Newtonian viscosity of 0.004 kg m^-1 s^-1 can be used ("Blood is thicker than water"). Estimate the volume of blood flowing through the human circulatory system in 1.00 minute, assuming Poiseuille's equation and assuming that the resistance to flow in the arteries and veins is negligible compared with that in the capillaries. The actual volume is approximately 5 liter per minute, which corresponds roughly to the entire volume of blood in the body circulating each minute.
Sri K.
Use the data describing blood flow in the circulatory system from the table below, and assume a typical blood flow rate of 5.0 L per minute. Aorta Arteries Arterioles Capillaries Venules Veins Vena cava Diameter (cm) 2 0.5 0.002 0.0009 0.003 0.5 3 Total area (cm^2) 3 20 500 4000 3000 80 7 1. What is the flow speed in the venules? Express your answer with the appropriate units. Answer: v = 2.8×10^(-4) m/s 2. What is the pressure difference across a 1.0 cm length of venule? Answer: ? Part 2 What is the gauge pressure of a tall water bottle that is 37.81 cm tall? Answer: 3710 Pa Find the absolute pressure, assuming that the atmospheric pressure is 1.11952×10^5 Pa Answer: ?
Umar Sohail Q.
A typical human capillary is about 1 mm long and has a radius of 2 m If the pressure drop along the capillary is 20 Torr, calculate the average linear speed (mm/s) of flow of blood of viscosity 4.0 x 10-3 kg.m-1.s-1. Calculate the volume of blood (x10-15 m3) passing through each capillary per second. Estimate the number of capillaries in the body if they are supplied by the aorta with a radius of 9 mm and a length of 0.5 m.
Adi S.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD
