CBSE Class 7 Answered
Identify the instrument shown below. 
Describe it.
Describe it.
Asked by Topperlearning User | 09 Mar, 2015, 11:01: AM
Expert Answer
The given instrument is the stethoscope. It consists of a chest piece that carries a sensitive diaphragm, two ear pieces and a tube joining the parts. The first stethoscope was made by Rene Laennec.
It is used to check the number of hearts beats per minute in patients which gives clue to the doctors about the patients' state of health.
Answered by | 09 Mar, 2015, 01:01: PM
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