Save
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

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.

Question

3 walls of blood vessles
click to flip
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know

Question

tissue of tunica intima
Remaining cards (24)
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

Lecture Ch. 19

Blood Vessels Part One

QuestionAnswer
3 walls of blood vessles tunica intima, tunica media, & tunica externa
tissue of tunica intima endothelium-simple squamous epithelium
intima media made up of smooth muscle and elastic fibers. the smooth muscle is controlled by vasomotor nerves-sympathetic nerve fiers
tunic eterna (adventitia) made of connective tissue. it protects reinforce and anchors the vessel to surrounding structures
2.5 to 1 cm in diam. thick walled arteries near the heart. large amts of elastin and less smooth muscle for stretching and continuous blood flow...the conducting vessels elastic arteries
1 cm to .3 mm in diam. deliver blood to specific body organs...the distribution vessels muscular arteries
smallest arteries .3 mm to 10 micrometers in diam. responsible for the DISTRIBUTION of blood flow to different tissues...the resistance vessels arterioles
hardening or stiffening of arterial walls arteriosclerosis
fatty deposits w/in the arterial walls and causes arteriosclerosis atherosclerosis
average capillary length; average lumen diam 1 mm; 8-10 micrometers
capillary walls made of of tunica intima only
have no capillaries lens, cornea, cartilage, epithelial layers
allow passage of water and small solute particles intercellular clefts
pores fenestration esp where absorption and secretion occur
large lumens and allow passage of large solutes and some blood cells sinusoids
networks of capillaries w/in an organ or tissue capillary beds aka microciculation
rings on capillaries controlled by vasomotor nerves and local chemical factors and control the distribution flow precapillary sphincters
have a very thin tunica media and have thinner walls and larger lumens veins
the smallest veins are called venules
venous system contains about what % of the total blood volume 65%
venous valves provide one way flow of blood and found in the extremeities only T or F TRUE
stretched dilated veins caused by incompetent valves which are damaged by high venous pressures varicose veins
tunica intima only, supported by surrounding tissues venous sinuses
2 or more arteries supply the same area and are interconnected. provide collateral channels in case the primary artery is blocked; often occur around joints arterial anastamoses
provide alternate routes for blood to return to the heart venous anastamoses
Created by: 1671530535
Popular Anatomy 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