Body Systems and Homeostasis Overview

Negative Feedback. Systems of control in the body in which the response acts as a stimulus to

appose the charge caused by the original stimulus. Negative feedback systems are used

to maintain homeostasis. Homeostasis. Maintenance of stable internal environment even when external

conditions change. Nervous, endocrine (hormone) and immune systems coordinate response

in cells and tissues to keep balance. Human Endocrine Systems. Comprises organs

and cells that release hormones. Hormones come from endocrine glands but also other cells.

Photosynthesis. 6 Carbon Dioxide plus 6 water turns into Glucose or 6 Carbon 12 Hydrogen

6 Oxygen plus 6 O2 ATP. Adenosine Triphosphate. Made of a Nitrogenous