Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
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. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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

Hemodynamics

Vascular Componants of the Circulatory System and Hemodynamics

TermDefinition
Blood Flow proportional to ∆ pressure, inversely proportional friction resistance
Friction Resistance (R) friction between blood and the vessel walls
Factors Affecting Blood Flow mean arterial pressure and vascular resistance
Smooth Muscle under sympathetic control
Elastic Arteries resilient to high BP, conducting arteries (aorta)
Elastic Rebound recoil of elastic fibers push blood and prevent drop of blood pressure during diastole
Muscular Arteries distribute blood to the skeletal muscles and internal organs
Arterioles one or two layers of smooth muscle cells
Aneurism blood pressure exceeds the capacity of elastic fibers to compensate for the pressure
Capillaries allow gas and chemical exchange with interstitial fluid
Continuous Capillaries allow diffusion of H2O, lipid-soluble molecules and small solutes (cartilage, epithelia, muscles, lungs, adipose tissue)
Fenestrated Capillaries allow fat exchange of water and solutes, contain windows or pores
Sinusoid Capillaries allow movement of large plasma proteins
Capillary Beds networks of capillaries originating from arterioles and emptying into small venules
Venules small veins which collect blood from capillary beds
Medium Sized Veins comparable in size to muscular arteries
Capacitance relationship between the volume of blood a vessel contains and the blood pressure
Myogenic Regulation smooth muscle changes its level of contraction as a consequence of changes in BP
Metabolic Regulation vasodilation is promoted when a tissue/organ experiences low O2, high CO2, or low pH
Blood Pressure proportional to CO x total peripheral R
Baroreceptors stretch receptors located in the aortic arch and cartoid sinuses
Vasomotor Control Centers control vasoconstriction/vasodilation; present in the medulla
Cardiac Control Centers regulates cardiac rate; present in the medulla
Colloid Osmotic Pressure osmotic pressure exerted by plasma proteins
Oncotic Pressure movement of H2O from the interstitial fluid to the plasma
Starling Forces general name for colloid osmotic pressure and net filtration pressure
Created by: rlmurp09
Popular Biology sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards