Asked by: Ludovic Carriles
medical health hormonal disorders

What are the feedback mechanisms of the endocrine system?

Last Updated: 16th June, 2020

40
Endocrine System Feedback
For example, your pancreas (an important gland in your endocrine system) relies on negative feedback to regulate blood glucose levels. An influx of glucose, say from a carbohydrate-heavy dinner, triggers your pancreas to produce a hormone called insulin.

Click to see full answer.

Similarly, it is asked, what is an example of positive feedback in the endocrine system?

Unlike negative feedback that maintains hormone levels within narrow ranges, positive feedback is rarely used to maintain homeostatic functions. An example of positive feedback can be found in childbirth. The hormone oxytocin stimulates and enhances labor contractions.

One may also ask, what is an example of a positive feedback mechanism? In a positive feedback system, the output enhances the original stimulus. A good example of a positive feedback system is child birth. During labor, a hormone called oxytocin is released that intensifies and speeds up contractions. Another good example of a positive feedback mechanism is blood clotting.

Correspondingly, what are the two main mechanisms by which hormones work?

There are two major mechanisms, second-messenger mechanisms and direct gene activation, by which the hormone activates the target cell. Direct Gene Activation. Steroid hormones pass through plasma membrane (they're lipid soluble) and attach to receptor molecules that are inside the cell.

Is breastfeeding positive or negative feedback?

Feedback control may be positive or negative. There are very few positive feedback systems in the body. One example, however, is lactation. The suckling action of an infant produces prolactin, which leads to milk production; more suckling leads to more prolactin, which in turn leads to more lactation.

Related Question Answers

Enzo Venjacob

Professional

What are the two categories of endocrine problems?

Types of Endocrine Disorders
  • Adrenal insufficiency. The adrenal gland releases too little of the hormone cortisol and sometimes, aldosterone.
  • Cushing's disease. Overproduction of a pituitary gland hormone leads to an overactive adrenal gland.
  • Gigantism (acromegaly) and other growth hormone problems.
  • Hyperthyroidism.

Sharleen Davydchenko

Professional

Is sweating negative feedback?

An example of negative feedback is body temperature regulation. If this is not enough to cool the body back to its set point, the brain activates sweating. Evaporation of sweat from the skin has a strong cooling effect, as we feel when we are sweaty and stand in front of a fan.

Enriqueta Allas

Professional

Is blood glucose levels positive or negative feedback?

In blood glucose regulation, the hormone insulin plays a key role. When blood sugar rises in the blood, insulin sends a signal to the liver, muscles and other cells to store the excess glucose. The glucose enters the blood stream and glucose levels increase back to normal. This is an example of negative feedback.

Salimatou Manchapora

Explainer

What are the characteristics of endocrine glands?

The endocrine system is made up of glands that produce and secrete hormones, chemical substances produced in the body that regulate the activity of cells or organs. These hormones regulate the body's growth, metabolism (the physical and chemical processes of the body), and sexual development and function.

Balbanera Plisek

Explainer

What is a example of a positive feedback loop?

Positive feedback occurs to increase the change or output: the result of a reaction is amplified to make it occur more quickly. Some examples of positive feedback are contractions in child birth and the ripening of fruit; negative feedback examples include the regulation of blood glucose levels and osmoregulation.

Kerry Bozada

Explainer

Is ADH positive or negative feedback?

As the level of water in the blood falls, negative feedback ensures that the amount of ADH rises. As the level of water in the blood rises negative feedback ensures that the amount of ADH falls.

Rochelle Bliebenicht

Pundit

Is calcitonin positive or negative feedback?

A negative feedback loop regulates the levels of PTH, with rising blood calcium levels inhibiting further release of PTH. Parathyroid hormone increases blood calcium levels when they drop too low. Conversely, calcitonin, which is released from the thyroid gland, decreases blood calcium levels when they become too high.

Mariola Borowic

Pundit

What are the 4 types of hormones?

Summary. There are three basic types of hormones: lipid-derived, amino acid-derived, and peptide. Lipid-derived hormones are structurally similar to cholesterol and include steroid hormones such as estradiol and testosterone.

Muela Dieterichs

Pundit

Are amine hormones water soluble?

Amine hormones originate from the amino acids tryptophan or tyrosine. Steroid hormones and thyroid hormone are lipid soluble. All other amino acid–derived hormones are water soluble. Hydrophobic hormones are able to diffuse through the membrane and interact with an intracellular receptor.

Boumedien Vinot

Pundit

Which hormones are water soluble?

Water-soluble hormones include glycoproteins, catecholamines, and peptide hormones composed of polypeptides, e.g. thyroid-stimulating hormone, follicle-stimulating hormone, luteinizing hormone and insulin. These molecules are not lipid-soluble and therefore cannot diffuse through cell membranes.

Constanze Vasyankin

Pundit

How does a hormone work?

Hormones are chemical messengers that travel throughout the body coordinating complex processes like growth, metabolism, and fertility. In response to a signal from the brain, hormones are secreted directly into the blood by the glands that produce and store them.

Vlado Schonberger

Teacher

What is an example of an amine hormone?

Examples of amine hormones are: T3, T4, epinephrine, norepinephrine, dopamine. T3, T4, epinephrine, norepinephrine, dopamine. Which of the above amine hormones are hydrophobic? They diffuse into target cells and interact with receptors inside the cells.

Senia Bachtold

Teacher

How do nonsteroid hormones work?

Nonsteroid hormones (water soluble) do not enter the cell but bind to plasma membrane receptors, generating a chemical signal (second messenger) inside the target cell. Second messengers activate other intracellular chemicals to produce the target cell response. The action of nonsteroid hormones.

Zayneb Nouali

Teacher

What is an amine hormone?

Amine Hormones
Amine hormones are derived from the amino acid tyrosine and include adrenaline, thyroxin and triiodothyronine. Amine hormones do not all share identical properties and have properties common to both peptide and steroid hormones.

Ranee Kratschmar

Teacher

What are the mechanisms of hormone action?

Hormones activate target cells by diffusing through the plasma membrane of the target cells (lipid-soluble hormones) to bind a receptor protein within the cytoplasm of the cell, or by binding a specific receptor protein in the cell membrane of the target cell (water-soluble proteins).

Nissrin Rudalf

Reviewer

How can hormones have multiple effects?

Hormones can only affect cells that display receptors that are specific to them; cells can display receptors for many different hormones at once. The more receptors for a particular hormone that a cell displays, the more sensitive to that hormone it will be.

Leonela Martincho

Reviewer

What is good feedback?

Effective Feedback is Specific, Timely, Meaningful, and Candid. With the right purpose in place, we need to think about the when and why of giving effective feedback. For psychologist Victor Lipman, this means your feedback needs to be: Specific: "Feedback should have a clear business focus," says Lipman.

Jaromir Oddo

Reviewer

What are some examples of positive feedback?

Positive Feedback Examples:
  • Example 1: When your employee reaches or surpasses a goal.
  • Example 2: When your employee takes initiative.
  • Example 3: When your employee goes the extra mile.
  • Example 4: When your employee helps their co-workers.
  • Example 5: When your employee needs a confidence boosts.

Lyubomir Navya

Reviewer

Is digestion positive or negative feedback?

Positive feedback is a cyclic process that can continue to amplify your body's response to a stimulus until a negative feedback response takes over. An example of positive feedback also can happen in your stomach. This cascade effect occurs and soon your stomach has enough pepsin molecules to digest proteins.