The splitting of the second heart tone, S2, into two distinct components, A2 and P2, can sometimes be heard in younger people during inspiration. During expiration, the interval between the two components shortens and the tones become merged.
Key Terms dub : The second heart tone, or S2 A2 and P2 , caused by the closure of the aortic valve and pulmonary valve at the end of ventricular systole. Heart murmurs : A sound made by backflow of blood through either set of valve that cannot close or open properly. When you are resting, you will probably feel between 70 and beats per minute. When you run around a lot, your body needs a lot more oxygen-filled blood.
Your heart pumps faster to supply the oxygen-filled blood that your body needs. You may even feel your heart pounding in your chest. Try running in place or jumping rope for a few minutes and taking your pulse again — now how many beats do you count in 1 minute? Most kids are born with a healthy heart and it's important to keep yours in good shape. Here are some things that you can do to help keep your heart happy:. Your heart deserves to be loved for all the work it does.
It started pumping blood before you were born and will continue pumping throughout your whole life. Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor. Search Spectrum Health. Search KidsHealth library.
What's in this article? Keep Your Heart Happy. The Heart Is a Muscle. How the Heart Beats How does the heart beat? Parts of the Heart The heart is made up of four different blood-filled areas, and each of these areas is called a chamber.
How Blood Circulates You probably guessed that the blood just doesn't slosh around your body once it leaves the heart. Listen to the Lub-Dub When you go for a checkup, your doctor uses a stethoscope to listen carefully to your heart. Pretty Cool — It's My Pulse! Keep Your Heart Happy Most kids are born with a healthy heart and it's important to keep yours in good shape.
Here are some things that you can do to help keep your heart happy: Remember that your heart is a muscle. If you want it to be strong, you need to exercise it. How do you do it? By being active in a way that gets you huffing and puffing, like jumping rope, dancing, or playing basketball. Try to be active every day for at least 30 minutes! An hour would be even better for your heart! Eat a variety of healthy foods and avoid foods high in unhealthy fats, such as saturated fats and trans fats reading food labels can help you figure out if your favorite snacks contain these unhealthy ingredients.
Doctors used to give anyone with a heart murmur antibiotic medicines before a dental or surgical procedure to prevent infection in your heart valves. Some of these procedures may cause bacteria to enter the bloodstream, which can lead to infection. Today, most doctors do not recommend routine antibiotics unless the murmur is caused by intrinsic valve disease. Talk to your doctor or dentist for current guidelines. Your doctor may prescribe certain medicines, depending on the underlying cause of your heart murmur.
In some patients, surgery may be needed to repair a heart defect or repair or replace a damaged heart valve. Other options. Close drawer menu Financial Times International Edition. Search the FT Search.
World Show more World. US Show more US. Companies Show more Companies.
0コメント