Unanswered | Answered

Heart

Parent Category: Circulatory System
The heart is a major organ of the body that is found in the circulatory system. It pumps blood throughout the blood vessels. Questions related to the heart should be put here.
they increase in size as we get older, so we can never tell.
The blood is able to move to and from the heart through the  contraction of the heart muscle. These contractions build up  pressure and cause you to have what is commonly known as blood  pressure. That build up of pressure pushes the blood throughout  the arteries and veins and enables it to...
The  autonomic nervous system (ANS)  is a division of the  peripheral nervous system that influences the function of   internal organs.[1]  The autonomic nervous system is a control system that acts largely  unconsciously and regulates bodily functions such as the  heart rate, ...
the heart pumps oxygenated blood round the body so that the muscles get oxygen to help them be used in energetic exercises
The components of the circulatory system include the heart, blood,  and blood vessels. The pulmonary circulation is also part of this  complex system.
The wall of the ventricles is thicker than the walls of the atria  as they have to be stronger as they have to pump the blood around  the body where as the atria only have to pump blood into the  ventricles
There are multiple objects you can use to build a heart model,  although building an actual heart is currently impossible. You can  use a bucket and different sizes on tubing to represent arteries,  use plastic tube endings as valves. Building a hart takes a lot of  work. However I would suggest...
    The heart is a  single organ, but it functions as a double pump sending  oxygen-depleted blood to the lungs to pick-up oxygen and unload  carbon dioxide, while simultaneously sending oxygen-loaded blood  coming from the lungs to cells throughout the body. The heart's  right...
The heart is located in the middle of your sternum, slightlyshifted to the left in BOTH males and females.
The valves of the heart make specific sounds when operating normally and abnormally. By knowing the difference in sounds, one can determine the defect. For example, a normal heart makes a lub-dub sound upon each beat. The sound you hear is that of the valves opening and closing. If you hear a lub...
The heart doesn't actually beat faster when it is sick. There are a  lot of things that could mean "sick" there is an entire branch of  medicine developed around the heart and its diseases. However to  answer your question the heart just works extra hard/overtime to  maintain steady blood flow...
The main functions of the heart are to use its muscles and pump blood around the body to have the oxygen and carbon dioxide in the cells so we can inhale and exhale correctly.
The four chambers of the heart are connected through tissues, just  like any other muscles in the body.
An earthworm does not have a heart. But, it possess an organ called  an aortic arch that performs similar functions of the heart.
when blood is returning to the heart quite oxygenated as the heart need constant supply of blood. but i am not sure about this so you way to use a range of other sources to get a more reliable awnser.
well it is da hardest ventricle because it works the goodest and it get the most blood
The oxygen gets from the HEART TO THE BODY not the other way  around. The heart takes in deoxygenated blood from the body and  directs it to the lungs with the help of the PULMONARY ARTERY. Once  the blood has been oxygenated it gets sent back to the heart  through the PULMONARY VEIN. From there...
when looking at a diagram of the heart it will be on the left side of the diagram but this will be the right side of the heart, the pulmonary artery is the exit from the right ventricle
pump the blood throw the body
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...
The heart is made up of the left and right ventricles and left and  right atria.
The heart is made up of the left and right ventricles and left and  right atria. These chambers contract and release forcing the blood  to get directed to arteries and veins so it can get distributed to  the body
You don't replace the liquid blood within you, however the red  blood cells that make up the liquid blood have a lifespan of 110 to  120 days. Since we know this the cells in your blood are constantly  changing, however the consistency of the blood is always the same.
No you heart beats as one. It has its own electric pulse of some kind, which tells individual tissues and cells when you beat.   == Answer: ==   There are electrical nodes which act as a circuit. In a normal working heart the beat originates in the sinus node in the right ventrical, the...
The superior vena cava is responsible for delivering deoxygenated  blood from the upper portion of your body to the heart.
The left atrioventricular valve stops the back-flow of blood by only being opened if a large force or pressure is behind it (in the left atrium) and is closed if a large force or pressure is in front of it (in the left ventricle).
The Atria are the chambers that receive blood from the body.
As you inspire, the diaphragm descends, it causes a further decrease in negative intrathoracic pressure, which increases the flow of blood out of vena cava into the right side of the heart.
The heart wall consist of three(3) layers the EPICARDIUM or the  external layer, the MYOCARDIUM or the middle layer, and the  ENDOCARDIUM or the inner layer.
The heart itself is a muscle, however the heart all is made up of  different muscles. The muscle knows as the MYOCARDIUM makes up the  largest portion of the Heart Wall. The myocardium is made up of the  cardiac muscle tissue, which is responsible for the pumping action.
The human heart has both Tricuspid and a Bicuspid Valve. The  Bicuspid Valve is more commonly know as the Aortic Valve. All that  bicuspid means is that there are only 2 leaflets in the valve  instead of the normal three leaflets that would be found in the  tricuspid valve or the mitral valve.
Arteries and Arterioles carry oxygenated blood AWAY from the heart  TO the body.
The superior and inferior VENA CAVA are responsible for returning  deoxygenated blood to the Heart.
The heart beat can increase due to stress and exercise. There are  many other factors that can increase heart rate.
Is it's posterosuperior surface. Made up of the left atrium for the most part, and also a bit of the right atrium. The left ventricle makes up the apex.
The (less than helpful) answer that I've seen for this one is once the hydraulic lifts go on the valves, it's cheaper to buy a rebuilt upgrade-spec (KL-DE or KL-ZE) engine than it is to service just the valves alone. Having the valve cover gaskets replaced (due to oil leakage, which of course...
Chest flutters are also know as PVCs or Premature Ventricular  Contractions. The can be caused from anxiety, fatigue, too much  exercise.
You have to be more specific about what you are doing but your heart beats to pump blood and oxygen to all parts of your body the more physical the activity the more blood and oxygen the body needs
A heart who's activity is controlled by nerves.
The heart distributed oxygenated blood to the body with the help of  Arteries and Arterioles.
Your heart keeps pumping blood. The reason people have heart attacks is because your heart never stops pumping blood but if you aren't active enough and you eat too much fat and cholesterol your arteries get clogged and blood can't pass through but your heart doesn't stop pumping blood.
A murmur would occur during the lubb portion of the cycle if the AV  valves were not closing properly. Most heart murmurs do not cause  the patient any problems.
Literally speaking, it is physically impossible for a human to have one heart inside of another. However, if you are certain that you feel this "second heart", then you are badly mistaken. This "second heart" is not your heart at all. It is in fact your soul.
the pulmonary veins send blood first to the left atrium, the blood passes through the mitral valve and then to the left ventricle
The four chambers of the heart are separated with the help of the  valves that prevent back flow of blood. Also, the left and the  right chambers of the heart are separated by the atrioventricular  septum.
usually the right side....are you talking about heart failure? The left side has more rich blood because it contains more oxygen...or so I've been told
  If your blood was ever truly too acidic or basic, you're body would go into massive shutdown as your blood completely dissolved you from the inside out. However, unless some organs are failing, you have absolutely no need to worry. Lots of alternative medicine sites would love to sell you...
The Aorta is responsible for taking the oxygenated blood away from  the body.
The heart is perfused by the coronary arteries.
The coronary sinus opens into the right atrium, between the inferior vena cava and the superior vena cava. It returns the blood from the substance of the heart, and is protected by a ... Its wall is partly muscular, and at its junction with the great coronary vein is ... groove between the left...
If you mean position in the body than yes. The heart is superior to the liver.
Yeah, that's its prime objective. The leads placed on the limbs canmeasure the heart's electrical activity, as the voltages generatedin the heart are readily transmitted through the body to the limbs.
the heart is surrounded by the pericardium. There is the visceral pericardium which is closest to the heart organ and the parietal pericardium which is the outer lining. The lungs are surrounded by the pleural membrane. There is the visceral pleura which is located closest to the lung and the...
  No. This is obviously a complete myth.
The SA node, the natural pacemaker of the heart, is found in the right atrium of the heart.
This is because mytotic cell division does not occur in the heart, so if damage is done the cells in the heart cannot repair themselves.
There are two blood vessels that take the blood away from the  heart. The PULMONARY ARTERY takes deoxygenated blood from the heart  to the lungs to get oxygenated, and the AORTA which takes  oxygenated blood from the heart and distributes it to the body.
Heart valves act as traffic cops. They guide the blood flow through the heart and do not allow for the back flow of blood. It keeps the blood moving in the correct direction. If you have a problem with the valves you can end up with a leaking valve which means the valve is not closing properly and...
The tricuspid valve is between the right atrium and ventricle. The pulmonary semilunar valve is where the blood flows out of the right ventricle, into the pulmonary circuit. The tricuspid has 3 flaps on it and also has chordae tendineae which attach to papillary muscles. These "chords" help prevent...
No, mammals have a closed circulatory system as the system consists  of veins and arteries, that carry blood through them. Unlike an  open circulatory system which also has a heart, but the blood is  free flowing throughout the body. For example when you kill an  insect, it is like popping a...
Cameron's heart is very weak and needs a heat transplant from a pig. He needs a second heart operation because his heart is rejecting the pig heart.   :)    :(    :-)    :-(    :|    :-|
  By injecting a non-toxic dye into the blood.
the septum seperates the left and right ventricles
The arteries are the type of blood vessel that carries blood away  from the heart. The veins are what carry the blood back to the  heart.
The main tissue in the heart is the Myocardium.
The veins carry blood toward the heart.
to bumb bold to the body
i am not sure but is it 18 cn square
The human heart has four chambers.The upper two chambers are called Atria and the lower two are called Ventricles
Its actulally when your brain stops then your heart stops but there is trick on how to live if you think your heart is stopping. k heres the trick "keep coughing" when you couch you take the force out of your lungs and litelrally make your heart compresss so the more compressed your heart gets by...
blood does not flow from the right atrium to the left ventricle and therefore there is no valve that connects them
The normal size of a human heart is said to be about the size of your fist. As the size changes for all ages and sizes of organisms.
The pumps inside the heart are four chambers that work together to pump blood to your lungs and your body. There are two upper chambers called atria and two lower larger chambers called ventricles.
Without knowing your complete cardiac condition, it is impossible, and would also be negligent of me to recommend an exercise program. Generally, walking is a safe way to lose weight along with lowering your calorie intake, but since you are a cardiac patient, you must* FIRST CHECK WITH YOUR HEART...
all animals of phylum mammalia have a fourchambered heart except crocodile whiuch has four chanbered heart inspite of being a reptile ,since reptiles have a3 chambered heart
Your heart will began to get unhealthy
The heart pushes blood to your body through the arteries. The blood returns through the veins. The large, flexible artery into which the heart pumps is the aorta.
the heart has 2 systems. the circulatory is the flow of blood from the heart to the lungs back the the heart again.ans systemic is the flow of blood from the heart to the body and back to the heart again.the aorta is the biggest atery in the body.
You can make a model of a human heart by making it with candy, clay, and Tupperware. If this is for a school project I suggest something creative like candy which can shoot up your grade. Tupperware may be a good idea but it's harder.
the tricuspid valve prevents the movement of blood from right ventricle to right atrium the ventricle opens into the aorta though the semi lunar valves
The song "Stayin' Alive" and its affects on survival. This is because that song has the exact number of beats per minute as the heart does.