Circulatory System

Connective tissue flows through the heart and blood vessels.

If the circulatory system "breaks down", a person could have a fatal heart attack or stroke. Depending on what happened to cause the collapse, a person may feel numbness anywhere in the body, look pail, or go unconscious. If it does not kill a person right away, they should be immediatly taken to the hospital.

Most nutrients are just dissolved in the plasma of the blood. They are transported to the cells when the heart pumps the blood through arteries, arterioles and capillaries. Nutrients diffuse through the walls of capillaries and enter cells.

Both are dependent on each other. The circulatory system is primarily blood flowing through your entire body carrying oxygen, nutrients and healing agents to the body especially vital organs like the brain. The oxygen being carried to and fro is collected via the respiratory system through the lungs. oxygenated blood is then distributed via circulating blood. An example of these two working together would be a patient with no heartbeat and barely breathing. Administering 1st aid would include reviving the heart (which is responsible for circulation) and also artificial breathing (which would assist the respiratory system to carry oxygenated blood to the brain) without the other, none of the aforementioned two would sustain human life.

Respiration involves the processes of inhalation and exhalation. It is used to control breathing through the exchanges of gases and distribution of oxygen.

They are attacked by the cells lymphocytes

Asthma is a condition of the lungs.

The nerves coating the inside of the lungs and the windpipe become sensitive and often restrict for short periods leaving a smaller hole for the air to pass through causing the sufferer to "wheeze".

As a result, the lungs struggle to breath in enough air to maintain the boday and certain organs can become deprived of oxygen for a short period of time, affecting mostly the heart and brain.

Long time sufferers will have scarring on their lungs from past attacks. You will also find their stomach muscles and diaphragm may be enlarged as these muscles are unnaturally used to force air in and out of the lungs during an attack.

(asthma is a long term condition)

The veins and arteries are able to wrap tightly around the skeleton, so they will not dislodge.

Answer 1

The limbic system (top of the brain stem including the medulla and pons which is located at the base of the brain) deals with (or regulates) breathing and heart rate.

Answer 2

No doubt. I agree with the medulla oblongata.

Answer 3

It's the Medulla.

Valves are found in the heart and in some veins.

What you feel in your wrist is a pulse. The pulse is caused by the heart pumping blood round your body.

The nervous and muscular system are synchronized to respond to each other. The nervous system creates some impulses which make the muscular system respond in order for them to move.

circulatory system is the trasport system of the body-distributes food nutrients and oxygen,collects and eliminates carbon dioxide and wastes from the different parts of the body

The bacterium has very simple life style. Most of them are non pathogenic. It is unicellular. It is very small in size. Every thing that bacterium needs is available in the same cell. So they do not need the circulatory system. That is why the number of bacteria on the earth is estimated to be 5,000,000,000,000,000,000,000,000,000,000. The man is most complicated of all the animals, specially due to his brain. (Although most of them work as per basic instincts!) He needs circulatory system to to have oxygen and nutrients and to carry away the carbon bi oxide and waste products of metabolism. The number of human being is about 7,000,000,000 only.

someone please answer this question i need it for homework like now!

Endocrine organs produce hormones. Examples of endocrine organs are the thyroid, ovaries, testicles, and adrenal glands.

the connection between the two is like this.

the nervous system sends the signal to the skeletal muscle to contract. This contraction causes the muscle to pull the bone, and the bone bends. This would mean that the movement of the skeleton is caused by nervous system which triggers the skeletal muscle to move the skeleton.

Both cellular waste and cellular fuel diffuse across the capillary walls to reach their destination. The rest of the system is meant to facilitate reaching all body cells with the capillaries.

Harvey, observing the notion of the heart in living animals, was able to see that systole was the active phase of the heart's movement, pumping out the blood by its muscular contraction. Having perceived that the quantity of blood issuing from the heart in any given time was too much to be absorbed by the tissues, he was able to show that the valves in the veins permit the blood to flow only in the direction of the heart and to prove that the blood circulated around the body and returned to the heart. Fabricius, his teacher in Padua, had discovered the valves in the veins.

The human heart is a four chambered muscular pump, whose sole task is to pump blood around the body.

The difference is that the heart of a fish has only two valves while th heart of a human has four valves. Also, there is a higher chance for the oxygenated blood and deoxygenated blood in fishes to mix rather than in humans.

arteries have thick walls that are both strong and flexible.

when your ventricles contract,blood surges through your

arteries,causing their elastic walls to expand and then relax!!! :)

A muscle is made up of hundreds of thousands of cells, specially conditioned to be able to tighten in on themselves, and relax, that allows free control of muscles, as bones, pivoting on the joints, are moved by the contractions.

diffusion A+

The peripheral vascular system is responsible for pumping blood into the brain. The carotid arteries are located in the neck and supply the brain with blood.