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Heart
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.
8,781 Questions
How many people have heart disease in Australia?
3,000 people each day have a heart attack in the US (W.H. Howard, M.D., M.S., F.A.C.C., F.A.C.P., How to protect your heart from your doctor)
Your heart is about the same size as your fist and weighs a little less than two baseballs.
How does it feel when your heart skips a beat?
There could be different reasons, some very serious... If you are experience this, go to the doctor as soon as possible, could be fatal.
Our heart beating is like breathing. It is regular, but sometimes we yawn, cough, sneeze, etc. Sometimes our heart misses a beat.
Why does your heart need valves?
Valves are like doors that only open in one direction. Blood cannot back-flow; it can only go in the direction the valve opens. If a valve does not close properly, there can be black-flow which causes symptoms.
the most common advantage is that if a kid kind of tries to stop his heart from beating or his longs from moving. we all know what can happen to him n in very small kids it is much more prominent because they don't really know what is actually going on...................... so i hope u got it................ well that's what i have known till now..............
Where is the s1 heart sound heard the loudest?
S1 makes a "lub" sound. It is the first heart sound in a normal rhythm. The sound is produced when the AV valves close.
What contains instructions to cells aout how to form a heart?
Explanation: The Deoxyribonucleic acid contains information that instructs the cells to combine together to form a heart. The basic structural and functional unit of life is cell
What structures of the heart make it powerful pumping organ?
The whole heart is made of muscle to do the pumping
What part of the brain contains cerebral spinal fluid?
It's called 'cerebro-spinal fluid', and it's found around the cerebrum and spine.
Is there any difference between auricle and atrium?
Auricle is an anatomical extension of the atrium. So auricle is the part of atrium.
Does your heart weaken with age?
Yes, because as you get older your heart also gets older and can't function as well.
How does the four chambers of the heart work?
Well first the heart does have four chambers
right atria- Blood comes into this part from the vena cava and is pumped to the right ventricle
right ventricle - pumps blood to the lungs by way of the pulmonary artery ( the only artery in the body carrying un-oxygenated blood).
left atria - blood returns to the heart through the left atria from the pulmonary vein ( only vein in the body carrying oxygenated blood.
left ventricle - Blood is pumped from here through the aorta to the rest of the body
The four chambers all have valves that do not allow back flow to occur. the reason for the chambers is to use as a holding tanks in between heart beats as well as provide a stop point before and right after the blood is oxygenated.
Where is the ligamentum arteriosum in the heart located?
The ligmentum arteriosum is the remnant of the ductus arteriosus in the fetal heart. The fossa ovalis is the remnant of the foramen ovale.
Where is the pericardial fluid?
- The pericardium (G. around the heart) is a double-walled fibroserous sac that encloses the heart (G. kardia) and the roots of the great vessels.
- It is located in the middle mediastinum, posterior to the body of the sternum and the 2nd to 6th coastal cartilages, and anterior to T5 to T8 vertebrae.
- The pericardium consists of two parts: (1) a strong external layer composed of tough fibrous tissue, called the fibrous pericardium, and (2) an internal double-layered sac composed of a transparent membrane called the serous pericardium.
How many times an adult heart beats?
The average heartrate for a adult is usually 72beats p/m. Pulse rate in adults can range from 60-80bpm. There are some factors that may vary heart rates in adults, eg. high blood pressure.
How do you know if your heart is beating?
You'll know because you're still alive. Typically, when your heart stops working, you aren't conscious enough - and certainly not alert enough - to realize it. If you're able to wonder whether your heart is working, then your heart is working.
What is the name of the upper chambers of the heart?
The heart has two upper chambers. One of which being the right atrium which pumps deoxygenated blood to the right ventricle, and the other being the left atrium which pumps oxygenated blood to the left ventricle.
What is automaticity of the heart?
The property that allows any cell in the cardiac muscle to begin an action potential, or a cardiac conduction, leading to cardiac contraction.
How quickly will you die from a needle puncture to the heart?
You will most likely die, but it depends on the blood loss. If you do survive, the blood in the chess cavity from the bleeding will interfere with your heartbeat, unless drained.
The AV node slows down the impulse giving the atria time to contract before the ventricles contract.
Where is the best place to auscultate an abnormal heart sound?
The anterior chest is the most common place to auscultate for abnormal heart sounds. Some abnormal sounds may also be heard in the center of the back or in the neck.
