Calorie balance refers to the relationship between the calories you consume from all foods and beverages and the calories you expend in basic body functions and through physical activity. When you are in calorie balance, the amount of calories you take in equals the amount of calories you burn and you maintain your body weight.
The inferior vena cava empties into the right atrium of the heart. The right atrium is located on the lower right back side of the heart. The inferior vena cava runs posterior, or behind, the abdominal cavity. This vein also runs alongside the right vertebral column of the spine. The inferior vena cava is the result of two major leg veins coming together.
The noun VENA CAVA has 1 sense: 1  1. either of two large veins that return oxygen-depleted blood to the right atrium of the heart. 2  Meaning: 3  Either of two large veins that return oxygen-depleted blood to the right atrium of the heart. 4  Classified under: 5  Nouns denoting body parts. 6  Hypernyms (vena cava is a kind of...): vein; vena; venous blood vessel (a blood vessel that carries blood from the capillaries toward the heart) Hyponyms (each of the following is a kind of vena cava): inferior vena cava; postcava (receives blood from lower limbs and abdominal organs and empties into the posterior part of the right atrium of the heart; formed from the union of the two iliac veins)