DMT Presenter Control Bedienungsanleitung PDF herunterladen (Seite 52)

Culture Myograph System Model 202CM

• The branch points of arteries are V-shaped whereas those of veins are more

U-shaped.

• The arterial wall contains a thick layer of smooth muscle cells compared to

the vein wall, which only contains a single or a few layers of smooth muscle

cells. The histological difference is clearly visible in the stereo microscope.

• If you still have difculty and the vein and artery still contain some blood then

try to move the blood forward by very gently squeezing the vessels with a forceps.

In the artery the blood will run back quickly whereas in the vein the blood will run

back very slowly if it even does so. Note, it is important that you perform this on

vessels other than those you will use as this procedure damages the vessels.

8. Dissect away the vein using scissors to cut the adipose and connective tissue

between the artery and vein. One method is to cut the vein in one position

and afterwards gently to pull the vein away from the artery. In this way a ne

membrane of connective tissue becomes visible between the adipose tissue

and the artery. Carefully cut the ne membrane to remove the vein and adipose

tissue while avoiding any direct contact between the scissor and artery (Fig. 7.4A-

B).

Figure 7.3 Distinguishing between artery and vein

Vein

Artery

“V-shaped”

“U-shaped”

Figure 7.4 Removal of vein

A B

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DMT Presenter Control Bedienungsanleitung Seite 52