Atelectasis. It is caused from various pathologies and or from prolonged static positions.
Auscultation
A stethoscope
Depends : fingers, stethoscope, EKG.
Stethoscope
It is called a stethoscope.
A stethoscope is used to listen to the internal sounds of a human or animal. It can not only be used to listen to the lung and heart, but also the intestines and blood flow in the arteries and veins.
It's called a Stethoscope.
It is called a Rale
Snap, Crackle and Pop
This instrument is called a stethoscope.
The machine used in fish tanks that makes bubbles is called an air pump or air stone. It add oxygen to the water and keeps the oils from coating the tank.
It is called a bubble wand.