Vein without valve
Formula: IPSS
There Are 4 veins Without Valve. Easy To Remember by technique: IPSS. See What IPSS Means with diagram.
I- Internal Jugular Vein
P- Pulmonary Vein
S- Superior Venacava
S- Sinuses of Brain
Vein Without Valve
All Result in One Place
Valo jinis likcho ! Picture diye khub sundor hoiche.
thnx vai
Duplicate vein also lack valves
I mean diploic vein*