We are beginning to explore the meaning of homeostasis and how cells work together to help your body keep you alive. In fact, if you are interested in a career in medicine, you are essentially interested in the study of a body's ability or ,in the case of disease, inability to maintain homeostasis. Your next homework assignment for 8/22 and 8/23 is as follows:
Read:http://www.ck12.org/concept/Homeostasis/#artifact_title
Watch:
1. (Overview) http://www.youtube.com/watch?v=0kxsviCkS40/
2. (Diabetes and Glucose Homeostasis) http://www.youtube.com/watch?v=qqPeAMF60nE
Answer these questions and go through the practice exercises:
- What is homeostasis?
- Describe the reason for shivering.
- What is negative feedback?
- Why can homeostasis be compared to temperature regulation in a house?
- Describe how organ systems work together to maintain homeostasis.
Important Vocabulary for this concept:
- endocrine system: Organ system of glands that release hormones into the blood.
- homeostasis: The process of maintaining a stable environment inside a cell or an entire organism.
- hormone: a chemical messenger molecule
- nervous system: Organ system that carries electrical messages throughout the body.
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