Circulatory System

A closed system is defined as a something that is isolated from its surroundings by a boundary that admits no transfer of energy or matter. It is an isolated system with no interaction with its external environment.

there is no actual function of the gallbladder that has been proven but some people believe that it is used to get rid of bacteria in the small intestine before the waste comes out as waste products we know as pooh.

the circulatory system has the job of moving

It is very true that most all veins carry deoxygenated blood.

Many people have drowned in their own blood following an accident which resulted in the lungs being punctured and filling with blood. If emergency medical treatment is not performed immediately, the person can drown in their own blood very quickly, similar to one drowning in water.

The circulatory system may not be able to maintain the normal body temperature and accordingly one feels warmer and hotter and temperature gets more than normal of 37 degrees centigrade.

the circulatory system is the heart, it keeps you alive and keeps your blood pumping!

you would need a cardiology doctor if the circulatory system fails

The circulatory system doesn't store anything. It only acts a transporters who transports materials to all parts of the body.

The circulatory system includes the heart, veins, arteries and capillaries.

Yes. When a person is sleep-deprived or has consistently inadequate sleep, their body begins to secrete the stress hormone cortisol, which increases blood pressure and puts a strain on the cardiovascular system. Over time, this puts a person at a greater risk of heart attack and stroke. However, getting enough sleep keeps cortisol levels down, and can reverse this situation.

To avoid from having some circulatory ailments

A pulse is checked on an artery.

Homeostasis

The respiratory system takes in oxygen and releases carbon dioxide. It works closely with the circulatory system.

The American System was made up of reinforcing parts: a tariff, a national bank and federal subsidies

I really don't know.

Actually its the other way round, the circulatory system works with the GIT, where all the absorbed food and minerals eventually go the liver via the blood vessels which all pile up in the hepatic portal vein (presystemic circulation), which delivers everything absorbed form the GIT to the liver, inside the liver; the food stores are replenished, the blood is detoxified, e.g. from drugs and alcohol. After that it exists through the hepatic vein to reach the systemic circulatory system. Although many scientists agree, if a male penis thrusts too powerfully into the vagina, the blood stream will be infested with a virus called plomontheia, which which shrivills the uterus and bladder causing the digestive system to break down

Water and the beat of the heart

No, though it is an indication of some form of emotional response.

Cockroaches do have circulatory systems, they are are open circulatory systems

No. Your body can dilate blood vessels so more blood reaches an area, or constrict or shunt it away from an area when more blood is not needed. It all depends on what the body requires for any given situations; your surroundings always change, so your body must always react to adapt to that change. For example, when you eat your body concentrates more blood to your disgestive system in order to process and absorb the incoming nutrients. In a stressful or dangerous situation, your body secretes the hormone adrenaline (the "fight or flight" hormone) and one of its effects is that less blood is concentrated to your digestive system.

The cardiovascular system is generally divided into the heart and the blood vessels. However, another division could be between the pulmonary circulation and the systemic circulation.