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Is the clotting of blood an example of positive or negative feedback?

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15y ago

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Is blood pressure regulated by positive or negative feedback?

Aldosterone is both responsible for absorption of sodium and excretion of potassium. If it is regulated by the level of potassium in blood, then we have negative feedback as high levels of aldosterone causes a decrease in potassium level in blood. If it is regulated by the level of sodium in blood, the story is just the opposite and we have positive feedback. -my own conclusion from several researches-


Is blood calcium level a positive or negative feedback mechanism?

positive


Is blood regulated by negative or positive feedback?

negative feedback via baroreceptors in the carotid artery and aortic arch


What is an example of negative feedback mechanisms?

Control of blood pressure.


What is a feed Back?

It depends on whether it is positive or negative feedback. Most biological organisms exhibit both negative and positive feedback, including humans. An example of positive feedback is contractions during childbirth. Negative feedback is blood sugar regulation based upon the release of insulin into the bloodstream at necessary times.


Control mechanisms that lower blood pressure in response to rapid rise in blood pressure are called?

Negative feedback mechanisms


What is a biological feed back?

It depends on whether it is positive or negative feedback. Most biological organisms exhibit both negative and positive feedback, including humans. An example of positive feedback is contractions during childbirth. Negative feedback is blood sugar regulation based upon the release of insulin into the bloodstream at necessary times.


The patient has arteriosclerosis which results in increased peripheral resistance to blood flow which worsens the hypertension Is this a negative or positive feedback.Explain?

Its a negative feedback,because the smaller the lumen , the higher the blood pressure because of the deposit in the vessel thus causing the resistance.


How does positive feedback maintain cellular homeostasis?

Perhaps you don't understand the meaning of positive and negative feedback. Positive feedback keeps adding to a process. Negative feedback doesn't. If a person fills a bathtub, positive feedback will continue the filling even if it runs over. Negative feedback will turn the water off when the tub is filled. So, negative feedback maintains homeostasis. Homeostasis means "steady state". When a processes is completed, it turns it off. Example: Blood sugar levels remain in a certain range.


Is control of blood glucose levels a negative feedback?

If high blood pressure is at play then a negative feedback system would reverse this. Through this negative feedback the stimulus of increased pressure is reversed or decreased by decreasing heart rate which decreases the blood pressure. If low blood pressure is at play the negative feedback system would also be appropriate because your body needs to reverse this stimulus. Your heart rate would increase to increase blood pressure. NOTE: Positive Feedback system enhances or further intensifies the stimulus so we would not want that for blood pressure. This is seen for birth contractions. You want to intensify contractions to enable the baby to get out of the canal. However, usually you need some external event to turn off the positive feedback or it could be fatal. In this case the baby is born so that stops the contractions.


A blood clot stimulating the formation of more blood clotting is an example of?

Postive feedback


Which type of feeback is more common in the body?

Positive feedback loops are less common in the body compared to negative feedback loops. Negative feedback helps maintain homeostasis by reversing a change back to its set point, while positive feedback magnifies a change away from the set point. Examples of positive feedback in the body include childbirth and blood clotting.