Save
Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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
share
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

Physiology

Chapter 14

QuestionAnswer
Viscosity of Fluid Offers resistance to flow *As viscosity increases, resistance increases
Total Peripheral resistance(TPR) Combined resistance of all BV within systemic circut
What does microcirculation include? Arterioles, capillaries, venules
What lines inner layer of BV? epithelial cells
Components of BV walls Smooth muscle, and connective tissue
Arteries Thick walls& large diameter *Fast blood flow *Storage of pressure *
What does pulse pressure tell you? Elasticity of BV
What regulates Arterioles radius ring of smooth muscle cells *extrinsic
What factors regulates the arterioles radius? Sympathetic ¶symp. nerves, hormones, metabolic activity, change in blood flow, stretch of BV, locally secreted factors
Sympathetic nerves role in arterioles Causes vessel constriction which increases BP
Parasympathetic nerves role in arterioles Doesn't play a huge role
Hormones role in arterioles Epinephrine(neuron transmitter), vasopressin(produces in kidney) angiotensin(vasoconstriction)
Metabolic activity role in arterioles Amount of Co2 & O2 in blood
Changes in blood flow role in arterioles slow blood flow produced more co2
Heat and cold role in arterioles Heat causes vasodilation cold causes vasoconstriction
Capillaries 5-10 micrometer *thin cell wall *blood velocity if slow
net filtration in Capillaries 3L a day
Venules connect capillaries to veins *little smooth muscle(don't expand much) *some exchange of material between blood and interstital fluid
Veins large diameter & thin walls *volume reservoir(60% of blood there)
Valves in veins only exist in peripheral veins
Lymphatic System system of vessels/ducts that coarses throughout body towards the heart
Open System Returns excessive amount of filtrate to our blood (part of immune system)
Lymph node Like tollway. *watches for everything passing through like cancer cells or bacteria
Mean Arterial Pressure (MAP) MAP=HRxSV(strokevolume)xTPR
Baroreceptors AKA Pressure receptors, stretch receptors *sense pressure in blood
2 major locations of Baroreceptors 1.Aortic Arch 2.carotid body(artery)
Baroreceptor reflex (-) feedback loop to maintain BP
Created by: izis
 

 



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