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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
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artiteacher Exocrine versus endocrine glands

Jul 11

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artiteacher How hormones travel the bloodstream

Jul 11

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artiteacher The discovery of secretin

Jul 11

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artiteacher Ancient hormone extraction techniques

Jul 11

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artiteacher Chemical messengers of the body

A chemical messenger inside your flow, Finding the right lock to make your systems grow.

Jul 10

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Exocrine versus endocrine glands

artiteacher Exocrine versus endocrine glands

Jul 10

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Fun Fact

Hormone naming history: The word hormone comes from the Greek 'hormon', which literally means 'to set in motion' or 'to excite'.

Jul 10

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How hormones travel the bloodstream

artiteacher How hormones travel the bloodstream

Jul 10

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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.
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Jul 10

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Quiz

Who coined the term 'hormone' in 1905 from a Greek word meaning 'to excite' or 'to arouse'?

Jul 10

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Gossip

Which hormone would you want to boost right now?

Jul 10

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Quiz

Which chemical messenger was the very first hormone discovered by scientists in 1902?

Jul 10

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Quiz

What is the primary method hormones use to travel to distant target organs in the human body?

Jul 10

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Quiz

In which country did healers extract active hormones from human urine as early as the 10th century?

Jul 10

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Quiz

How do endocrine glands differ from exocrine glands like sweat glands?

Jul 10

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Quiz

What term describes the cellular structure that a hormone must bind with to trigger a response?

Jul 10

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Quiz

Which of these is NOT a primary endocrine gland in the human body?

Jul 10

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Quiz

What physical property determines whether a hormone can pass directly through a cell membrane?

Jul 10

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The lock and key mechanism

artiteacher The lock and key mechanism

Jul 7