1 Gently rub a pumice stone back and forth across the affected area for three to five minutes and then pat dry your feet. 2  Dip a cotton ball in castor oil and place it on the corn. Secure it with tape and leave it on overnight.  The next morning, remove the bandage and apply castor oil several times a day.
1. I am confused regarding the presence of valves in the superior vena cava. The superior vena cava does not possess valves unlike inferior vena cava, which possesses Eustachian Valve.
The superior vena cava is located in the upper thoracic region. It is the main vein that drains into the right atrium of the heart. Blood returning from the brain, upper thora â¦ cic region, and arms travels through this vein to the heart.wo major veins bring deoxygenated blood from the body to the  heart: the superior vena cava and the inferior vena cava. The  Superior vena cava brings blood from the upper â¦ half of the body to  the right atrium of the heart.