I will understand how feedback loops in the

I will understand how feedback loops in the endocrine system regulate homeostasis in the body. MT: Organ Systems Slide of 44 Copyright Pearson Prentice Hall End Show

39 -1 The Endocrine System Control of the Endocrine System Q: How does the endocrine system maintain homeostasis? A: Feedback loops that increase or stop a process from occurring. Slide of 44 Copyright Pearson Prentice Hall End Show

39 -1 The Endocrine System Feedback Loops 1. Negative Feedback 2. Positive Feedback stops a cycle increases a cycle - Copyright Pearson Prentice Hall + Slide of 44 End Show

Parts of Endocrine System Regulated by Feedback Loops

Example of Negative Feedback in Body high blood sugar levels pancreas cells alerted pancreas secretes insulin into blood insulin allows cells to absorb sugar blood sugar level drops glucagon releases sugar into blood pancreases releases glucagon brain tells pancreas to stop releasing insulin

Example of Positive Feedback in Body 1. Damaged blood vessel 2. Collagen in vessels trap platelets in blood + 3. Platelets release clotting factors in blood 4. Clotting factors cause more platelets to get trapped in collagen + 5. Platelets release more clotting factors 6. Get a blood clot

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