You will hear this sound at the apex in the left lateral position. Use the bell of the stethoscope. Normal in children and young adults. It is abnormal when it persists in a person. Usually abnormal in adults over the age of 40 and can be an early sign of heart disease or congested heart failure.
verb (used without object), subsided, subsiding. 1. to sink to a low or lower level. 2. to become quiet, less active, or less violent; abate: The laughter subsided. 3. to sink or fall to the bottom; settle; precipitate: to cause coffee grounds to subside. Origin of subside.
succumb Use the verb succumb to say that someone yields to something they've tried to fight off, such as despair, temptation, disease or injury. If you succumb to cancer, it means you die of it. From this sentence you can see that this verb is usually followed by the preposition to. The Latin root is succumbere, from the prefix sub-under plus -cumbere to lie down.