Circulatory System

The main organ of the circulatory system is the heart. Some consider the blood an organ as well, since it is basically liquid tissue. The third and final component of the circulatory system is the blood vessels - veins and arteries - that carry the blood throughout the body.

Systemic circulation begins and ends at the left side of the heart, in the left atrium and left ventricle.

Cytotoxic T cells and NK cells (natural killers)

The real function and purpose of the Circulatory system is to keep us alive (of course working in conjunction with the other systems of the body). The Circulatory system carries food and oxygen to all the cells of the body and then in response to that removes all waste products.

Generally we say that we inhale only oxygen and exhale only CO2. But actually it is not like that.

We hale air which has every gas in it.

But the greater % we take in is O2 and greater % we leave out is Co2.Other gases are insignificant in the process of respiration.at first air enter into the lungs specifically to say in the alvioli . then through the alveolar wall O2 enters into the blood by diffusion and similarly CO2 enters into the lungs from blood . thus this system works .

The main organs of the respiratory system are the lungs. The main organs of the circulatory system are the heart and blood vessels.

if you are dehydrated, the kidneys hold on to as much fluid as they can, which results in a decreased urine output.

Because of the decreased urine output, you are not excreting enough salt and water, which then causes increased volume fluid.

This increased water retension increases your blood pressure

The cardiovascular system consists of the heart, blood, and blood vessels, like veins and arteries. There is a related system to the cardiovascular system called the lymphatic system which moves lymphatic fluid through the spleen, lymphatic tissues, and lymphatic vessels. Some sources consider these two to be one system, the circulatory system, because they both "circulate" fluids in the body.

Purkinje fibers are located in the endocardium.

Endocardium: This is the inner layer of the heart that consists of epithelium and underlying connective tissue. The endocardium also contains bloods vessels and Purkinje fibers. The endocardium lines all of the heart chambers and covers structures, such as heart valves, that project into them. This inner lining is also continuous with the (endothelium) of the blood vessels attached to the heart and throughout the cardiovascular system.

Source:

Hole's Human Anatomy & Physiology. Twelfth Edition. David Shier, Jackie Butler, and Ricki Lewis. Mc Graw Hill - Higher Education. Page 555

The respiratory and circulatory system connect in the lungs. At the alveoli, the air sacs are wrapped closely by capillaries to facilitate gas exchange.

What is the difference between the digestive system of a camel and the digestive system of man?

Right so let's break the first task down; what is happening to her circulatory systemfirst of all.

When you exercise, or play football in this case, you are working your muscles and certain places in the body. When this happens, your muscles respire (burn the FOOD to produce ENERGY) more faster than they would normally, so the demand for OXYGEN and GLUCOSE is increased.

Because the muscles are performing cellular RESPIRATION quicker than the norm, they need oxygen and glucose to reach them faster (glucose and oxygen are the components for cellular respiration), and also they need to get rid of their C02 (products of cellular respiration are CARBON DIOXIDE and WATER) so the HEART is now pumping blood around the body at a faster rate in order to provide these cells with what they need. To summarize, the circulatory system has to work harder and faster during exercise to provide the cells at work with glucose and oxygen and to get rid of the waste carbon dioxide.

Right now the next part of the task asks what is happening to her breathing system (aka respiratory system).

This relates to the explanation I gave earlier; the requirement for oxygen is increased so now the respiratory system (in particular the LUNGS) have to work harder and faster to take in more oxygen and to exhale more C02, thus you begin to breathe faster. To summarize, oxygen is inhaled quicker and carbon dioxide is exhaled quicker, therefore the rate of DIFFUSION is increased.

Oh and for the diagrams you could draw a picture of a girl playing football, then next to that have a picture of her lungs and heart (including the arteries/veins) and show how they are working harder during exercise.

Lung cancer reduces lung function (just before it kills you). The reduced lung function means there would be less gas exchange taking place, which means less oxygen getting to the body.

nicotine is a dangerous "drug" that damages the respiratory system , specifically the lungs . So, If a person does not smokes , and does not inhale "secondhand smoke" , his/her respiratory system will be healthy...

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The circulatory system is the transportation system of your body.

often correct themselves without medical treatments by the age of two. If this dose not happen, surgery is done by sewing the hole closed, or by sewing a patch of Dacron material or a piece of the sac that surrounds the heart. In contemporary time it is repaired without an open heart surgery . catheterization is use where a small catheter is inserted to the heart via the viens from the leg up to the heart . Two kinds are available of the filling material of the hole . One kind is a disc filled with polyster and the other one is an umbrella shaped materail that fills the hole in .

No, some invertebrates lack circulatory systems all together such as cnidarians, psudocoelomates and poriferas (sponges). Most of these use tubes that link their internal body to the external environment or they use a gastrovascular cavity. Some have closed circulatory systems such as mollusks (not cephlapods) and anthropods, the pump a fluid that lacks the complete distinction between extracellular fluid and circulating fluid thus this fluid is called Hemolymph.

cardiac output

The circulatory system is made up of the vessels and the muscles that help and control the flow of the blood around the body. This process is called circulation. The main parts of the system are the heart, arteries, capillaries and veins. As blood begins to circulate, it leaves the heart from the left ventricle and goes into the aorta. The aorta is the largest artery in the body. The blood leaving the aorta is full of oxygen. This is important for the cells in the brain and the body to do their work. The oxygen rich blood travels throughout the body in its system of arteries into the smallest arterioles. On its way back to the heart, the blood travels through a system of veins. As it reaches the lungs, the carbon dioxide (a waste product) is removed from the blood and replace with fresh oxygen that we have inhaled through the lungs.

The Brachial artery on the inside of the elbow is most commonly used because it can be accessed easily and compressed with a cuff. However it does depend on what method you are using.

With use of sphygmomanometer (inflated cuff compresses artery) you can use the brachial or the radial (at the wrist - the same as commonly used for taking the pulse). This gives less reliable results. (Some monitors even use the digital arteries in the finger).

Invasive methods in which the pressure is measured directly by passing a sensor into directly the artery are often used during surgical or invasive procedures. In such cases larger deeper seated arteries are used (eg Subclavian - behind the collarbone or femoral - in the groin) as well as the brachial or radial arteries.

No. Cows, like humans, only have one circulatory system that is connected by only one heart. The systemic and pulmonary circuits of the circulatory system are such circuits that are interconnected within a mammal's body via the heart.

Two many functions of the circulatory system are the movement of nutrients and oxygen to the tissues, and movement of wastes from the tissues to the excretory system. The main organs are the heart and blood vessels.

The four main components of the circulatory system is the following;

1. Heart

2. Veins

3. Artery

4. Vessels

the lower heart.

Large arteries and veins are like high-capacity highways, and they branch into smaller capillaries which go all through the body, so capillaries are like roads.