Question

who found that paper tube helps to hear heart beat​

Answer 1

Answer:

Modern stethoscopes: 200 years in the making.

In 1816, French physician Rene Laennec invented the first stethoscope using a long, rolled paper tube to funnel the sound from the patient's chest to his ear.

Inventor: René Laennec

Explanation:

hope it will be helpful

Answer 2

Explanation:

Modern stethoscopes: 200 years in the making.

In 1816, French physician Rene Laennec invented the first stethoscope using a long, rolled paper tube to funnel the sound from the patient's chest to his ear.