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Thyroxine: Definition & Function

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question 1 of 3

Which of the following is the main function of the thyroid hormone?

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1. T4 is the abbreviation for thyroxine. This comes from the fact that thyroxine needs four _____ atoms per molecule in order to be manufactured correctly.

2. Thyroxine production is regulated by _____.

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About This Quiz & Worksheet

Thyroxine regulates several of the body's functions. Use this quiz and worksheet to test your knowledge of the components of thyroxine, its production, and other information from the lesson.

Quiz & Worksheet Goals

Students will be tested on:

  • What regulates thyroxine production
  • The effect of a drop in thyroxine level due to lack of TSH release
  • Function of the thyroid hormone

Skills Practiced

  • Information recall - access the knowledge you've gained regarding why thyroxine is abbreviated as T4
  • Reading comprehension - ensure that you draw the most important information from the lesson on thyroxine
  • Knowledge application - use your knowledge to answer questions regarding the name of a chemical messenger used in endocrine functions

Additional Learning

Learn about thyroxine by reviewing the lesson, Thyroxine: Definition & Function. Objectives covered include:

  • Review the structure of thyroxine
  • Understand how the thyroid hormone works
  • Know what the endocrine system does
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