Left Side of the Heart- The Double Circulatory System
Transportation of food
Ruby will enter the heart through two large veins, the inferior and superior Vena Cava, emptying poor oxygen from Ruby into the Right Atrium. Ruby will travel down the Cartilage and Trachea into one side of the Brochi and into the Bronchials. Gas Exchange happens at the Aveoli so Carbon Dioxide, a waste product from Ruby will leave the Body and import Oxygen. The Pulmonary Vein will empty the rich-and-high-in-oxygen Ruby, from the lungs into the left atrium.
Entering the Bloodstream
Ruby will go to the Pulmonary Vein from the Lungs and into the Left Atrium passing the Left Valve (the Biscuspid) and into the Left Ventricle to transport out of the Aorta to the body. Ruby is now rich in blood and goes all around the body (maybe not all around but towards certain places such as the Head, the Muscles etc. Ruby and her family will go into the Work Cycle when they are not rich in oxygen and needs health check ups.
When the food have been chewed by Ruby's friends Teeth and Mouth (the mechanical digestion), the food items will go down the Oespgaus (Tube of muscle- peristalis) and end up at the Small Intestine. Some of the larger food molecules will be broken down by mixing in with different Juices so they will be broken down smaller molecules.
Other places that the food molecules will pass
The smaller molecules will be mainly absorbed by me and my family (by the Bloodstream Family) in which the nutrients (e.g. vitamins, minerals, fats, carbohydrates, protein and fibres) will be travelling around the other parts of the body with us. In the Small Intesting (carbohydrate and lipase), diffusion will happen (Capillaries) with Glucose- active transport.
Other food molecules that are not absorbed by us will have to carry on with their jouney to go to Large intestine (Osmosis happens) to the Rectrum and Anus (they will be out of the human body- agistion).
To be exact, the food molecules will be passing the Liver (maties Bile - Gall Bladder and Mectratises acid), the Gall Bladder and Stomach (churning and proteax) beofre arriving at the Small Intestines.