Busy. Please wait.

Forgot Password?

Don't have an account?  Sign up 

show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

Already a StudyStack user? Log In

Reset Password
Enter the email address associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know (0)
Know (0)
remaining cards (0)
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Circulation guyton

Circulation - guyton

What is distensibily of blood vessels? All the blood vessels are strechable.
Most distensibility in? Veins 8x more distensible then arteries
Distensiblitiy difference between pulmonary and systemic The pressure is 1/6 less so the distensibility is 1/6 less
Vascular distensibility causes? Less resistence, smooth blood flow.
A increase in volume in arterial system causes? drastic pressure change.
How much blood is filled in the arterial system? 750ml
If volume is lowered to 500ml what happens to the pressure? Dropps to zero.
Delayed compliance vessels exposed to increased volume first exibits large increase in pressure but delayed stretch of the vessels walls drive the pressure back down to normal.
What does effect the pressure? Stroke volume, total distensibility of hte arterial tree and character of injection
What happens to the pressure as it travels down the arterial tree and why? It gets damped because 1, the resistance to blood movement and 2, complinace of vessels.
What central venus pressure? It's in the right atrium where all veins flow into.
What increases the venous return? 1, increased blood volume. 2, increased peripheral venus pressure. 3, dilatation of arterioles->rapid flow of blood.
What causes higher pressure in atrium? (1) Heart failure 2) massive blood transfusion.
What causes the pressure in the atrium to drop? 1)excessive pump 2)blood flow to the atrium is depressed.
Why does large veins offer some resistence to blood flow? Because of the collapsing vein or because of a compressed vein.
Which veins in the body does not collapse? In the sinus veins in the brain.
What happens to a standing person when the vein gets damage? Air enters the blood stream and causes a air embolism in the heart.
Where do we have specific reservoirs? In spleen, liver, large abdominal veins, venous plexus beneath the skin, heart and the lungs.
What is the spleens function? Stores red blood cells, Cleans the body from old cells, bakteria, parasites etc.
Created by: Malekian