27. Which organ's fluids did Loewi's experiment focus on?
Liver bile
Stomach acid
Blood
Frog heart fluid
Answer
Loewi's experiment, known as the "frog heart experiment," demonstrated the chemical transmission of nerve impulses. Conducted in 1921 by Otto Loewi, this groundbreaking experiment used isolated frog hearts to show that a substance released from the stimulated vagus nerve could slow down the heart rate of a second heart. This substance was later identified as acetylcholine, a neurotransmitter.
Unveiling Otto Loewi: A Journey into the World of a Revolutionary Pharmacologist
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