Page 22 - Varicose Veins Presentation

ANATOMY AND FUNCTION OF THE VENOUS SYSTEM
ANATOMY AND FUNCTION OF THE VENOUS SYSTEM

VALVES
VALVES

Present in :
Present in :
superficial veins,
superficial veins,
perforators,
perforators,
The action of the calf muscle communicating veins,
communicating veins,
collaterals
collaterals
helps to pump blood up=to ( (greater than 2mm)
greater than 2mm)
deep veins
and in in deep veins
and
the heart.
The normal one way vein
valves in the veins of the legs
prevent this blood coming 10 15 valves in a great saphenous vein
back to the legs 2 10 - - 15 valves in a great saphenous vein