Circulatory System

There is no way except exercise to get more blood to the knees. You heart has to pump blood to every part of the body and since the legs are lower, you already get a lot.

The 'lub' is the S1 sound. It occurs due to normal closure of the mitral and tricuspid (atrioventricular) valves. With these valves closed, systole commences and blood is actively squeezed from the ventricles. The second sound is the 'dub' or S2 sound. It occurs as the aortic (to LV) and pulmonary (to RV) valves close to prevent backflow from the blood ejected from the ventricles and marks the beginning of diastole (or filling) of the heart.

I'm not sure I understand the question- if you want a list of respiratory diseases for an assignment for your science class, here are a few: Asthma Pulmonary Disease (something smokers get) Croup (something children get) Common cold bronchitis Hope that helps! Heather (an MD from Canada)

The blood from the body tissues arrives at the heart in vessels called the inferior and superior Vena Cavas. It enters the right atrium of the heart and is pumped passed the tricuspid valve into the right ventricle. Then a second, delayed contraction, pushes the blood through another valve, the pulmonary semilunar valve into the pulmonary trunk. From here the blood moves through the left and right pulmonary arteries and enters the left and right lungs where gas exchange takes place. Carbon dioxide is dropped off and oxygen is picked up by the hemoglobin of the blood by a process known as diffusion. Then oxygenated blood moves through the pulmonary veins to the heart and enter into the left atrium. This completes the pulmonary circuit of the cardiovascular system.

The respiratory and circulatory systems interact within the alveoli in a simultaneous manner. When you breathe in the oxygen in diffused in the alveoli which is then carried by the blood to the heart and pumped to the rest of the body.

the circulatory system helps other systems function because it circulates blood to the other systems in your body and that helps the other systems function because the other systems have to pass that through that system

by getting all the food down the tubes

A stop-start pattern; that is why we feel a pulse, instead of a constant pressure.

they diffrentiate

they breath through their gills and they breath out like us but the only difference is that they have gills and lungs.

food ingested is broken down into smaller pieces via mechanical and chemical digestion. this takes place in the mouth stomach and the intestine. it is then absorbed (taken in) by cells of the gut called enterocytes. these cells then transfer the nutrients into the capillaries supplying the gut. in this way nutrients from your diet enter the circulatory system to transfer them to other tissues

The same as it does when you are standing on your feet. Your heart pumps and forces the blood through your body.

blood provides oxygen to the body

The circulatory system consists of the heart and blood vessels.

As you probably already now, fat (if too much) can easily clog up major arteries, Your body requires energy in order for bodily processes to function. If your body does not have enough calories in a day (this can be through diet and exercise where your forcing your body to burn storage fat) it will turn to your storage fat supply. The first source the body turns to is glycogen. When those sources are nearly depleted, the body begins lipolysis, the mobilisation and catabolism of fat stores for energy. In this process, fats, obtained from fat cells, are broken down into glycerol and fatty acids, which are then used to make energy. The primary by-products of metabolism are carbon dioxide and water; carbon dioxide is expelled through the respiratory system. The heart need blood to function properly, and with all that fat... Your heart is going to have major problems The recommended intake of fats in the most countries diet is to limit fats to below 30 percent of the total daily caloric intake. One-third of fats should come from saturated fats, with the other two-thirds split evenly between monounsaturated and polyunsaturated fat. It is estimated that in the average American diet (as of 2002), fats make up 42 percent of calories, with saturated fat making up between a third and a half of that amount. The effect of this excess intake of dietary fat has some well-established implications for the health of overweight Americans. For instance, the consumption of excess amounts of saturated fats has been recognized as the most important dietary factor to increase levels of cholesterol. A high cholesterol level is detrimental to health and leads to a condition known as atherosclerosis. Atherosclerosis is the build-up of cholesterol on the walls of arteries , which may eventually result in the blocking of blood flow. When this occurs in the arteries of the heart, it is called coronary artery disease. When this process occurs in the heart, a myocardial infarction, or heart attack , may occur. Besides the cholesterol implications due to high fat intake, obesity is a factor in the causation of disease. Being overweight or obese is highly associated with increasing the risk of type II diabetes, gallbladder disease, cardiovascular disease, ect.

In a unicellular organism there are organelles within the cell, which have specialized functions, and in order for these organelles to work together to create a functioning cell, there has to be some means by which chemicals of various sorts can travel from one organelle to another. That is accomplished by a cellular circulatory system.

Some exercises that help the cardiovascular system are running, moderate-intensity walking, swimming, moderate-intensity dancing, kickboxing, biking etc. Really anything that gets the heart rate up and where the energy system used requires oxygen are exercises that are aerobic.

Let's follow the flow of blood starting at the Aorta, the aorta is the main blood vessle that carries O2 rich blood to the vital organs, organs, systems, extremities, muscles, and most importantly the brain. All the above mentioned use the oxygen and give off carbon dioxide as a by product. The CO2 , carried by the blood travels back to the heartand enters the Right Atrium, another beat of the heart, the b;ood now moves through the tricuspid valve to the right ventricle. Remember, this is oxygen poor blood so withamother beat the blood mooves through the pulmonary arteries, (left & Right), to the lungs. Inside the lungs the blood drops off CO2 and picks up O2 using a process called Osmosis*. The blood at the moment has little pressure so it goes back into the heart through the Pulmonary Veins into the Left Atrium. A beat of the heart sends it into the Left Ventricle. Around this chamber is a large muscle called the Myo Cardium and this muscle gives the pressure needed to push this blood oround the entire body. *Osmosis, the diffusion of water or another solvent through a selectively permeable membrane. This membrane is like a sieve, allowing solvent molecules, which are small, to pass through it, but preventing larger molecules dissolved in the solvent from passing through.

five common circulatory system

The Heart, the Vena Cava, the Aorta, the arterioles, veins, arteries, and capillaries are structures included in the circulatory system.

The main purpose of the vena cava is to carry deoxygenated blood from the lower part of the body to the heart. It carries this blood to the right atrium of the human heart.

The respiratory system function is gases exchange, deoxygenated red blood cells (meaning, they're full of CO2) get to the lungs from the heart through the pulmonary artery, and when it reaches the alveoli, the CO2 gets exchanged for O2 from the alveolar sac, oxygenating the red blood cells, then the blood goes back to the heart through the pulmonary veins and gets pumped to the rest of the body through the aorta, the O2 gets exchanged back for the CO2 produced by the cells, then goes back to the heart. Rinse and repeat.

When the nervous system doesn't function properly you may not be able to move or feel as others do. Your doctor may have medications that can help you slow the deterioration of your nervous system.