Your heart is located between your lungs in the middle of your chest, behind and slightly to the left of your breastbone (sternum). A double-layered membrane called the pericardium surrounds your heart like a sac.he heart weighs between 7 and 15 ounces (200 to 425 grams) and is a little larger than the size of your fist. By the end of a long life, a person's heart may have beat (expanded and contracted) more than 3.5 billion times.
There are 320 calories in 1 serving of Pei Wei Mongolian Beef. Calorie breakdown: 47% fat, 28% carbs, 25% protein.
Calorie Breakdown. A 1-cup serving of beef and barley soup contains 132 calories, 21 g of carbohydrate, 8.99 g of protein, 2 g of fiber, 1 g of fat, 0.5 g of saturated fat, 480 mg of sodium and 10 mg of cholesterol, according to the U.S. Department of Agriculture's National Nutrient Database.