Not true about superior vena cava
SVC opens in to right atrium (not right ventricle).Superior vena-cava SVC collects blood from the upper half of the body and drains into the right atrium. It is formed by the union of two brachiocephalic veins at the level of lower border of 1" right costal cailage. It passes veically downwards behind the right border of sternum and piercing the pericardium at the level of the second costal cailage, enters the upper border of the right atrium to end in the upper and posterior pa of sinus venorum at the lower border of third right costal cailage (opposite Ts veebra).Behind the sternal angle (T4 veebral level), SVC receives the azygos vein.SVC is divided into two pas -i) Upper half (extrapericardial) ii) Lower half (intrapericardial)
Opens into right ventricle
Enters the hea at level of 3rd costal
Pierces paricardium at 2nd costal cailage
Receives azygos vein behind sternal angle