Circulatory System

By: Caroline Koenig


The circulatory system is the system that circulates blood and lymph through the body. It consists of the heart, blood vessels, blood, lymphatic vessels and glands.


Some diseases associated with the circulatory system are, Varicose vein, Coronary artery disease, Buerger's disease, Atherosclerosis. Varicose veins, also known as Xarix are enlarged vein. Any vein can become one. Varicose Veins Mostly affect people in the legs and feet, standing or walking increases the pressure in the veins of your lower body. They can cause aching pain and discomfort, and you will have a higher risk of getting other circulatory problems. Some symptoms are heaviness, achiness, swelling, throbbing, or itching in your lower body.


The circulatory system delivers oxygen, nutrient molecules, and hormones. It also removes carbon dioxide, and some other metabolic wastes.
Respiration- delivers oxygen to the cells while removing carbon dioxide from them
Nutrition- brings digested food substances to the cells in the body
Waist Removal- dispossess of waist products and poisons that would harm the body
Immunity- helps the protect the body form disease
Cellular Communication- provides transportation for hormones
Thermoregulation- transports heat


Muscular system- It allows the heart to beat and the blood vessels have a smooth muscle in them that helps them constrict or dilate
Respiratory system- The heart pumps blood into the lungs then it is oxygenated. The new oxygenated blood returns to the heart and is circulated to the rest of the body.

Fun Facts

  • The heart beats around 3 billion times over the average persons life
  • About 8 million blood cells die in the human body each second
  • The same amount is born every second
  • it takes about 20 seconds for a red blood cell to circulate through the human body
  • Within a small droplet of blood there in approximately 5 million red blood cells