Answer: it keep oxygen rich blood flowing to the brain and other vital organs if the heart or lungs stop working on their own. The medical term for this is “loss of automatic function.”
Explanation: If the person is unconscious or out of breath you're going to have to give the person CPR because it's the air that helps the heart keep beating so if there is no air for the patient
If their answer came out not the same as the accepted theory answer
Examine the placenta, oxygen, blood pressure, growth, measurement, if baby is head down
The amplitude of the waves decreases
The lower the sound volume is the lower the wave amplitude is.
Answer: Peristalsis is a series of wave-like muscle contractions that move food through the digestive tract.
Explanation: It starts in the esophagus where strong wave-like motions of the smooth muscle move balls of swallowed food to the stomach.