1. Endocrine System

2. Important Vocabulary  Hormone  Target tissue  Insulin

3. Endocrine System  2 nd control system of your body  Chemicals control endocrine system  These chemicals are called hormones  Hormones affect specific tissues called target tissues  Doesn’t react as quickly as the nervous system

4. 8 Endocrine Glands  Pituitary  Thyroid  Parathyroid  Thymus  Adrenal  Pancreas  Ovaries  Testes

5. Pancreas  Produces digestive enzyme which is released into the small intestine  Also secrete hormones  One hormone, called insulin enables cells to take in glucose (main source of energy for cells)  Insulin enables glucose to pass from the bloodstream through cell membranes.  People who can’t make insulin are diabetic

6. Negative-Feedback System

7. Answer… 1.What is the function of hormones 2.What is a negative-feedback system? 3.Glucose passes from the bloodstream through cell membranes and into the cells. Glucose is required for respiration within cells. How would lack of insulin affect this process? 4.Compare/contrast nervous and endocrine system.