The speed of sound in blood at 37°C is ______?

1531 m/s

322 m/s

1570 m/s

None of these

The speed of sound in blood at body temperature (37°C) is approximately 1570 m/s, as measured in medical studies.

This is due to blood's density and compressibility, which differ from air (343 m/s) or water (1482 m/s).