Structure Of Blood Vessels As Level Biology

Front 1

Artery Appearance

Back 1

1.Thick Wall 2. Narrow Lumen 3. Outer middle and inner layer.

Front 2

Artery main function

Back 2

transport blood from heart to organs

Front 3

Artery/Arteriole/Vein Blood flow

Back 3

1.away from the heart to an organ.2.organ to cappillaries 3. towards heat away from organ.

Front 4

Artery/Arteriole/Vein Blood pressure

Back 4

1. high&pulsatile (pressure surges)2. not as high and pulsatile 3. low and non pulsatile

Front 5

Valves?

Back 5

Absent in Arteriole and Arterys but present in veins to present backflow

Front 6

Inner layer/ endothelium and its function for each Artery/Arteriole/Vein

Back 6

Present in all three; vert smooth layer which enables blood flow with little friction.

Front 7

Middle layer/the muscle and elactic fibres for Artery/Arteriole/Vein

Back 7

Artery: Present & Thick
Arteriole: Present
Vein: Present but thinner than an artery.

Front 8

Function of Middle layer.

Back 8

blood forced and bulges and stretches the elastic fibers. they recoil and smooth blood flow. Muscles contract in walls of arterioles allowing amount of blood flow to organs to be varried

Front 9

Outerlayer: Connective tissure and its function for each Artery/Arteriole/Vein

Back 9

Present in all three; Vein has a thick outerlayer. Function is to help hold vessbles open and precent tearing during body movements

Front 10

Vein apperance

Back 10

think wall and large lumen

Front 11

Arteriole apperance

Back 11

thin wall