Module 2 The Endocrine System

Lesson 1.2.4

Lesson 4—The Thyroid and Parathyroid Glands

Get Focused

Hyperthyroidism and hypothyroidism are two opposite types of thyroid disorders. If you have hyperthyroidism you might always feel too hot, experience weight loss, and find it difficult to concentrate. You may also be jittery and hyperactive. If you have hypothyroidism, you are likely to feel cold, you may be overweight, you may feel lethargic, and you may have trouble staying awake. Emily developed hypothyroidism. She also developed tiny growths in the parathyroid glands. An overproduction of a parathyroid hormone caused her to lose calcium from her bones, which became fragile and brittle and caused her to develop kidney stones.

In this lesson you will explore the following focusing question:

• How do the thyroid and parathyroid glands contribute to homeostasis?

This lesson will take approximately 2.0 – 2.5 hours to complete.

Module 2: Lesson 4 Assignment

  After you have completed all of the learning activities for this lesson, you can complete the online assignment.

Bio30 1.2.4 online assignment.

You should also watch the tutorial video for this lesson and submit a summary.  Bio20 tut#1.2.3 Thyroid Parathyroid

You must decide what to do with the questions that are not marked by the teacher.

Remember that these questions provide you with the practice and feedback that you need to successfully complete this course.  You should respond to all of the questions and place those answers in your personal course folder to be used for study purposes.