One teaspoon = approximately 4 grams. A Teaspoon of Sugar provides straightforward, proactive information on sugar metabolism and how too much sugar intake can lead to weight gain, diabetes, heart disease, cancer, learning difficulties, acne, tooth decay and poor athletic performance.
â¢ White blood cells, which fight infections. â¢ Platelets, smaller cells that help blood to clot. Blood is conducted through blood vessels (arteries and veins). Blood is prevented from clotting in the blood vessels by their smoothness, and the finely tuned balance of clotting factors.
Video: Heart and circulatory system. Your heart is a pump. It's a muscular organ about the size of your fist and located slightly left of center in your chest. Your heart is divided into the right and the left side. The division protects oxygen-rich blood from mixing with oxygen-poor blood. Together, your heart and blood vessels comprise your cardiovascular system, which circulates blood and oxygen around your body. Your heart pumps about 5 quarts of blood every minute.