pancreas
Regulating blood glucose concentration
Homeostasis!
someone please answer this
The control center, which is the pancreas, plays a crucial role in regulating blood glucose levels by producing and releasing insulin and glucagon hormones. Insulin helps lower blood sugar levels by promoting the uptake of glucose into cells, while glucagon helps raise blood sugar levels by releasing stored glucose from the liver. This balance is essential for maintaining stable blood glucose levels in the body.
Insulin and glucagon are an example of antagonistic hormones that help control blood sugar levels to maintain homeostasis. Insulin lowers blood sugar levels by promoting glucose uptake into cells, while glucagon raises blood sugar levels by promoting the release of glucose from energy stores like the liver. These hormones work together to regulate blood glucose levels and keep them within a narrow range.
An example of homeostasis is regulating blood glucose concentration. The body does this as follows: If there is enough glucose in the blood, the hormone insulin (from the pancreas) stimulates the liver to store the extra (not needed at the time) glucose as glycogen. If the blood sugar gets low, another hormone stimulates the liver to release the glucose back into the blood. If the storage in the liver is full, glucose is converted into fat in special cells around the body.
This process is known as glycogenolysis, where stored glycogen in the liver is broken down into glucose and released into the blood to maintain blood glucose levels.
Homeostasis is the ability to maintain a constant internal environment in response to environmental changes. It is a unifying principle of biology. The nervous and endocrine systems control homeostasis in the body through feedback mechanisms involving various organs and organ systems. Examples of homeostatic processes in the body include temperature control, pH balance, water and electrolyte balance, blood pressure, and respiration.
Insulin is an effector that lowers blood glucose levels by promoting its uptake by cells. Glucagon is another effector that raises blood glucose levels by stimulating the release of glucose from storage sites like the liver.
Normally, in mammals the blood glucose level is maintained at between 3.6 and 5.8 millimoles per litre. In humans, normal blood glucose is about 90 mg per 100ml of blood--that's about 5 millimoles.
homeostasis/negative feedback system
Blood glucose monitoring is for people with diabetes so they can control their blood glucose in their own home. The advantages of blood glucose monitoring are early detection of hypoglycemia, better blood sugar control, and fewer complications.