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.
One oz of raw beef flank steak contains around 47 calories out of which 21 calories come from fat. The total fat content in an equal serving of raw beef flank steak is 2.4 grams out of which 1 gram is saturated fat, 0.1 gram is polyunsaturated fat and the monounsaturated fat content is also 1 gram.