1. Deoxygenated blood from the capillaries is brought to the veins, which travel along their own network back towards the heart. From the heart, deoxygenated blood goes to the pulmonary artery, which is directed towards the lungs. Once at the lungs, [...]

    Filed under: Chemistry

  2. Like the circulatory system, which has a network of blood vessels running throughout the body, so does the lymphatic system. A network of lymph vessels run throughout the body, but this system does not have a pumping heart to facilitate the flow of[...]

    Filed under: Chemistry

  3. For people who love double cheeseburgers, potato chips, pork rinds, orange soda, chocolate cakes, vanilla milkshakes, and all those stuff that are too good to be bad, their digestive systems must be working overtime. Who doesn't like to eat? Living[...]

    Filed under: Chemistry

  4. Since a large portion of the human body is composed of water, a lot of work has to be done to maintain the balance of fluids within it. The excretory system regulates not only the amount of fluids in the body, but also maintains the amount of salt [...]

    Filed under: Chemistry

  5. The respiratory system and the circulatory system are the two big bosses when it comes to keeping us alive. Which is why vitals signs such as pulse and breathing are checked to determine if a patient is alive or not. These two systems work hand in [...]

    Filed under: Chemistry

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