Verywell Health on MSN
What are heart sounds and how to know if they’re normal
Medically reviewed by Jeffrey S. Lander, MD Key Takeaways S1 and S2 are the normal heart sounds you hear when the heart ...
The fourth heart sound (S4), also known as the "atrial gallop", occurs just before S1 when the atria contract to force blood into the LV. If the LV is non-compliant and atrial contraction forces blood ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results