The human endocrine system
Chapter 1
Chemical messengers of the body
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Chapter 2
The master controllers
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Chapter 3
Metabolism and energy
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Chapter 4
Stress and survival
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YOUR GOAL
Master of The human endocrine system
Ch 1 · Chemical messengers of the body
teacher A chemical messenger inside your flow, Finding the right lock to make your systems grow.
Fun Fact
Hormone naming history: The word hormone comes from the Greek 'hormon', which literally means 'to set in motion' or 'to excite'.
Glossary
hormone (noun)
A regulatory substance produced in an organism and transported in tissue fluids to stimulate specific cells or tissues. English physiologist Ernest Starling coined the term in 1905 while describing these internal secretions.
A regulatory substance produced in an organism and transported in tissue fluids to stimulate specific cells or tissues. English physiologist Ernest Starling coined the term in 1905 while describing these internal secretions.
Quiz
Who coined the term 'hormone' in 1905 from a Greek word meaning 'to excite' or 'to arouse'?
Quiz
Which chemical messenger was the very first hormone discovered by scientists in 1902?
Quiz
What is the primary method hormones use to travel to distant target organs in the human body?
Quiz
In which country did healers extract active hormones from human urine as early as the 10th century?
Quiz
What term describes the cellular structure that a hormone must bind with to trigger a response?
Quiz
What physical property determines whether a hormone can pass directly through a cell membrane?
