Multiple choice

Who discovered secretin hormone?

  1. J. C. Brown

  2. William Bayliss and Ernest Starling

  3. Roderic Alfred Gregory

  4. Robert Tigerstedt

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

William Bayliss and Ernest Starling discovered secretin hormone in 1902. It was the first chemical messanger that was identified.