ANATOMY

Detailed explanation-1: -The respiratory system brings oxygen into the lungs when you breathe. The digestive system breaks food down into nutrients such as glucose. Now the circulatory system enters the picture. It transports glucose and other nutrients from the digestive system to the cells.

Detailed explanation-2: -The respiratory system is primarily used to transport air, while the digestive system is used to transport fluids (such as water) and solids (such as food particulates). The respiratory and the digestive systems share the region of the mouth and upper throat, where air, fluids, and solids can be mixed.

Detailed explanation-3: -The digestive tract provides the nutrient molecules, through the process of digestion, while therespiratory tract provides oxygen. As such, the two systems work togetherto give your cells the ingredients they need to produce energy, which they use to communicate, build cellular products and grow.

Detailed explanation-4: -(1) Inhales (breathes in) Oxygen-good for the body-gives it to the Circulatory System to be transported throughout the body through the blood. (1) Digestive System gets nutrients (good) from food and hands it over to the blood and Circulatory System then carries those nutrients where they need to go.

Detailed explanation-5: -The small intestine absorbs most of the nutrients in your food, and your circulatory system passes them on to other parts of your body to store or use. Special cells help absorbed nutrients cross the intestinal lining into your bloodstream.