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Circulatory System
Circulatory System is the category for questions about the human circulatory system, including questions about the human heart, arteries, and veins.
2,116 Questions
What is the different of neuron to an odinary cells?
A neuron is a fundamental cell of the nervous tissue which receives and maufactures information and generates and transmits responses and cells are composed of several different compounds (water, carbohydrates, proteins etc.) which combine to forma cell. In conclusion, a neuron basically belongs to the nervous tissue while ordinary cells generally belong to the blood tissue.
Do all lymph pass through at least one node before it is returned to the blood stream?
The lymph nodes are all over the body and each area or region is drained by its group of lymph nodes. They do not pass through one node but they drain in the thoracic duct which ultimately opens and drains in the large veins of the neck on the left side
Where would pressure be caused by stenosis of the mitral valve?
There will be higher pressure in the left atrium, when there is mitral stenosis. There will dilatation of the left atrium as well as there will hypertrophy of the left atrium. There will raise in the pulmonary veins. This will lead to pulmonary edema. This will eventually lead to high pressure in pulmonary arteries. That is called as pulmonary hypertension. The pressure in right ventricle will increase. Then the pressure in the right atrium will increase. Then the pressure in the systemic venous side will increase. This will lead to right sided heart failure.
Why does blood pressure in aorta decrease further form heart?
As the blood moves through the aorta, the friction of the walls of the aorta decreases velocity. This velocity decrease results in a decrease in pressure.
How does the circulatory system keep your body in balance?
Your circulatory system is so important! It consists of your blood, blood vessels, and heart. Your heart brings blood to your heart through your veins, and when it gets to your heart, it goes through your right atrium, through your right ventricle, into your lungs through your arteries, back into your heart through veins, into your left atrium, through your left ventricle, and goes through your biggest artery, the aorta, and then other arteries to go to every cell in your body. You have 3 types of blood vessels; veins, capillaries, and arteries. Veins take blood toward the heart, arteries take blood away from the heart, and capillaries let blood kind of travel wherever, and collects oxygen from the air sacs, which are covered in capillaries. The digestive, respiratory, and urinary systems all connect with the circulatory system, mostly by having blood carry things such as oxygen and carbon dioxide throughout the body Hope this helps!
Why do we represent blood using the colors red and blue?
Blood is actually the color red, so blood is represented by the color red because it is red. It is sometimes represented by blue to represent deoxygenated blood, which is actually dark red as opposed to the bright red of oxgyenated blood. This is purely for visual purposes so those learning about the circulatory system can see clearly where there is oxygenated blood and where there is deoxygenated blood. The myth that human blood is blue is not true, but the blood of a horseshoe crab is actually the color blue.
The blood moves in a lateral direction to the distal right thumb. Then the blood comes back in a proximal direction toward the medial body, where the heart is located.
How fast must a heart beat for it to be lethal?
Generally, the most basic formula for calculating the maximum heart rate that is considered safe is:
220 - your age.
Your heart rate will naturally increase to that level as a reaction to a lot of things: like exercise, blood pressure drops and adrenaline surges. It is called sinus tachycardia.
That's the short answer. If you want more info, the long answer is to come ;)
The formula has at least 50 variations, any of them can only give a rough estimate, based on age alone. There are many other factors to be considered alongside this. The most reliable method of finding the maximum heart rate is through a Cardiac Stress Test, which is basically just running on a treadmill while hooked up to an ECG and occasionally increasing the speed and slope. The real maximum heart rate depends on your age, size, weight, fitness and a little genetic randomness.
Here's the kicker though: there's a lot of different types of fast heart rate, which is medically referred to as "tachycardia". It's almost never fast heart beat that causes death; your body often increases it's heart rate as a reaction to some other kind of stimulus, but if it continues for a while then the heart's increased workload and demand for oxygen can cause ischemia. It can also degrade into become arrhythmic (irregular beat) if the underlying problem is not solved - arrhythmia will definitely kill you. Then of course, there is always the possibility of full blown cardiac arrest.
Hope this helped you
Digestive system and circulatory system?
1. Esophagus
2. Stomach
3. Small intestine
4. Large intestine
5. Rectum and anus
6. Liver
7. Pancreas
8. Gallbladder
9. Appendix
1. Heart
2. Arteries
3. Veins
4. Capillaries
5. Lymphatic sytem organs
The heart
An assembler takes abbreviated names for computer instructions, like "MOV", and turns them into the numeric bytes which, when loaded into memory, can be executed by the CPU.
Identify and interpret the functions of the circulatory system?
The function of the circulatory system is to distribute blood throughout the body. Through the circulatory system, the blood delivers oxygen, nutrients, antibodies, and heat to all areas of the body.
What blocks blood flow to the kidneys?
The kidneys need a good blood supply. The main artery to the kidney is called the renal artery. Reduced blood flow through the renal artery can hurt kidney function. A complete blockage of blood flow to the kidney can often result in permanent kidney failure.
How railway same as circulatory system?
The nutrients in our circulatory system is like the passengers in the train, the blood is just like the train and the blood vessels like the rails of the train.
What happens if the circulatory system fails?
Eventually you die. The circulatory system is comprised of the heart and other related systems and functions in transport of nutients and oxgen around the body . If it fails then the body parts which need these substances are left without them and as these substances are vital to survival then you die shortly after.
The answer is 4,500mL/minute.
Cardiac output is the volume of blood being pumped by the heart. To compute it, use this equation:
Cardiac Output (Q) = SV (stroke volume) × HR (heart rate)
So, cardiac output = 60 mL x 75 beats per minute = 4,500 mL/min
Explain the different areas the blood flows through the heart with?
In the heart there is four chambers, two of which pump blood in and two that pump blood out. The names of these chambers are Right and Left Atrium and Right and Left Ventricle. Oxygen poor blood from your entire body enters your 'Right Atrium' and gets pumped into your 'Right Ventricle'. From your 'Right Ventricle' your Oxygen poor blood is moved into your 'Pulmonary Artery' and then pumped into your lungs to become oxygenated. Your Oxygenated blood is then pumped into your 'Left Atrium' and moved into your 'Left Ventricle' where it is then pumped into your 'Aorta' and distributed back into your bloodstream.
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What is a bulge of weak area in the wall of the aorta know as?
This weak spot is called an aneurysm. In the aorta it is called an aortic aneurysm.
