How Is Blood Sugar Regulated By Negative Feedback

Share on facebook

Antagonistic Hormones

Maintaining homeostasis often requires conditions to be limited to a narrow range. When conditions exceed the upper limit of homeostasis, a specific action, usually the production of a hormone, is triggered. When conditions return to normal, hormone production is discontinued. If conditions exceed the lower limit of homeostasis, a different action, usually the production of a second hormone, is triggered. Hormones that act to return body conditions to within acceptable limits from opposite extremes are called antagonistic hormones. The regulation of blood glucose concentration (through negative feedback) illustrates how the endocrine system maintains homeostasis by the action of antagonistic hormones. Bundles of cells in the pancreas called pancreatic islets contain two kinds of cells, alpha cells and beta cells. These cells control blood glucose concentration by producing the antagonistic hormones insulin and glucagon: Beta cells secrete insulin. When the concentration of blood glucose rises (after eating, for example), beta cells secrete insulin into the blood. Insulin stimulates the liver and most other body cells to absorb glucose. Liver and muscle cells convert the glucose to Continue reading >>

Share on facebook

Popular Questions

  1. Sheila

    kinda in a rush, so i cant describe it, but the menstrual cycle is an example of a positive feed back cycle. If you need negative ones there are a bunch in digestion. Enzymes are very complex and have bonding sites that will only fit with certain molecules. Hormones are often specific to enzymes, enabling or disabling them. Sorry I cant be of more help hopefully this jogs someone's memory and they can be more descriptive.

  2. -> Continue reading
read more close

Related Articles

  • How Is Blood Sugar Regulated By Negative Feedback

    1. REGULATION OF BODY GLUCOSE BY: SYEDA 2. Page  2 DEFINITION Blood sugar regulation is the process by which the levels of blood sugar, primarily glucose, are maintained by the body within physiological limits A balance between two sets of factors: A. Rate of Glucose entrance into blood stream B. Rate of removal from blood stream 3. Page  3 What are Normal Blood Glucose Levels?  What to do when your blood glucose is too low.The amount of ...

    blood sugar Dec 29, 2017
  • Is Blood Sugar Regulated By Negative Feedback Or Positive Feedback

    Full, instant access to all stories Customised email alerts straight to your inbox 5,000+ practice articles in our clinical archive Online learning units on fundamental aspects of nursing care ...

    blood sugar Jan 12, 2018
  • Is Blood Sugar Regulated By Negative Or Positive Feedback

    Homeostasis is the tendency to resist change in order to maintain a stable, relatively constant internal environment. Homeostasis typically involves negative feedback loops that counteract changes of various properties from their target values, known as set points. In contrast to negative feedback loops, positive feedback loops amplify their initiating stimuli, in other words, they move the system away from its starting state. What's the temperat ...

    blood sugar Apr 18, 2018
  • Why Is Blood Sugar Regulated By Negative Feedback?

    I did not believe is possible that HIV can be cured because i have been scammed so many times not until i came across this great man dr agbebaku who helped me at first I never believe all this comment and post about him and I was very sick because i have been infected with HIV for the past seven years,just last year I keep reading the testimony about this man named dr agbebaku they said that the man is so powerful he have cured different type of ...

    blood sugar Jan 17, 2018
  • Is Blood Sugar Regulated By Negative Feedback

    Your body is made up of millions of cells which need the conditions inside your body to be as constant as possible so they can work properly. However everything you do tends to change your internal conditions. You take millions of new molecules into your body when you eat and digest food. Your blood sugar levels soar after you have a meal - but your cells use up the glucose fast when you exercise hard. You release heat energy every time you move ...

    blood sugar Dec 29, 2017
  • Is Blood Sugar Regulated By Negative Or Positive Feedback? Explain Your Answer.

    Answer Key- LO 2.5 Multiple Choice: If the rubisco coding sequence were to be altered in a plant what process would be inhibited? ATP production Phosphorylation Transcription Carbon Fixation Free Response: The light from the sun first strikes the plant exciting an electron located in the thylakoid. The electron excites others in a chain reaction until a final electron is excited. This electron is captured by the primary acceptor which delivers th ...

    blood sugar Jan 12, 2018

Popular Articles

More in blood sugar