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How does the feedback control system for insulin production work?
Wiki User
∙ 12y ago
The control of blood glucose levels operates by what is known as a negative feedback mechanism. Here is a summary of the 2 control loops.
When the blood glucose level goes up- Blood sugar (glucose) rises;
- The pancreas detects the rise;
- The pancreas pumps out insulin into the blood;
- Insulin helps the uptake of glucose into muscles and other cells;
- This causes the blood glucose level to fall to its normal set point; and
- The pancreas detects the fall and switches off insulin production.
- Blood sugar (glucose) drops;
- The pancreas detects the drop in blood sugar;
- The pancreas switches on the output of glucagon into the blood;
- Glucagon signals the liver to break down glycogen into glucose;
- The liver releases glucose into the bloodstream;
- Blood glucose goes up to its normal set point; and
- The pancreas detects the rise in blood sugar and switches off glucagon release.
Wiki User
∙ 12y ago
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Does voluntary responses control the activity of glands?
The response of your glands is involuntary and controlled by a negative feedback system.
What are examples of feedback loops in are body?
example of negative feedback example of negative feedback
How hormones control blood sugar levels?
How does the endocrine system control blood glucose levels
What effects would the sympathetic and parasympathetic system have on insulin secretion?
Studies seems to indicate that the sympathetic system decreases insulin secretion, while the parasympathetic system increases insulin secretion.
What is processing control system?
A furnace by definition provides heat. There must be something that controls that heat; that is that tells the furnace when to fire up the burners and when to shut down the burners. This function is provided by the furnace control system. Usually the control system itself is controlled by a thermostat which maintains the temperature at a preset level on the thermostat.
What is a good example of a negative feedback loop?
dik Not sure what they mean by that but... A good example of a positive feedback loop is the increased production of insulin by our pancreas. After a meal we may have heightened blood sugar levels. The endocrine system triggers insulin production in the pancreas to counteract this rise and return our blood sugar levels back to normal. Once normality has been reached the endocrine system signals our pancreas to cease the production and release of insulin. Actually, that is an example of a negative feedback loop. Negative feedback loops negate an action, while positive feedback loops encourage it. An example of a Positive feedback loop is childbirth, the body increases the amount of oxytocin in the blood to encourage contractions in order to birth the baby.
What is unregulated system?
When there is no feedback to control its output.
How are negative and positive feedback involved in homeostatic regulation?
Negative feedback occurs when the output of a system reacts to cancel out the effects of an input of a system, as opposed to positive feedback (in which the actions/output is intensified or increased). The more negative, the more stable. Thus, with things being canceled out, the body maintains homeostasis. An example of negative feedback in action is the maintenance of blood glucose levels and body temperature. With input of sugar, insulin is released to stabilize the body (on the other hand, without insulin, diabetes can be diagnosed). With a raise in body temperature, blood vessels and pores are opened to release heat.
Which hormone is not under the control of the nervous system?
insulin
What is loop system?
A: It is any system where there is negative feedback to control its behavior
What Control system is designed to respond to feedback?
open loop
The basic type of control system in the body is the?
nervous system. It regulates and coordinates all body functions by sending electrical signals between different parts of the body. Its main components are the brain, spinal cord, and nerves.
What are the effects of feedback on time constant of control systems?
1.feedback in control system improves the speed of response2.using feedback in control system we can reduce the sensitivity of the system to parameter variation
What allows negative feedback to a control system?
the system has parts that sense the amount of output
What is the endocrine definition of self-regulating?
The endocrine system has four major mechanisms of control that regulate its functions. They are: Hormonal control, neural control, negative feedback, and positive feedback.
How are negtive feedback different from positive feedback?
some feedback r insulting or inappropriate. it depend on how u sort the question. Question is on feed back system in control system. In a control system generally there is a setpoint to be achieved. Control system aims to achieve the setpoint. However due to inherent reasons, the actual keeps hovering around the setpoint. A good control system keeps the setpoint very close to the setpoint. Control system must know the actual value to make adjustment to achieve the setpoint. Actual value is fed back to the control system. This feed back is referred as negative or positive feedback. The feed back tells the control system that the actual value is lower or higher compared to set point. This is known as negative or positive feedback.
Why do you use encoder in an elevator?
Encoder is usually used to measure the speed of a motor or a conveyor and provide feedback to the control system. In this case, the encoder reads the speed of the elevator and gives feedback to its control system
