Homeostatic Balance

Answer 1: Insulin and glucagon work together to keep glucose levels in the blood within the

Blood glucose regulation is an example of homeostasis in humans as the concentration of glucose in the blood has to be homeostatically regulated. To achieve homeostasis blood glucose concentration in a healthy individual must be between 70 and 100 mg per 100 cm3 of blood. If blood glucose level exceeds the normal concentration and becomes abnormally high it is called hyperglycaemia. In contrast, if blood glucose goes below the minimum concentration and becomes abnormally low it is called hypoglycaemia. Therefore glucose must enter and exit the blood at equal rates to maintain a stable blood glucose level. A number of hormones regulate the balance between these processes and are secreted by the adrenal glands and pancreas.

All living things strive towards one goal: homeostasis. Homeostasis is a state of equilibrium reached through physiological processes. In order to maintain homeostasis, living things use cells, tissues, organs, and organ systems to counteract physical changes. Using a variety of different tissues, organs are formed to accomplish specific tasks. The four main types of tissues are epithelial tissue, connective tissue, muscular tissue, and nervous tissue. Several sublevels exist for each type of tissue.

According to the book “Campbell Biology” written by Jane B. Reece, Lisa A.Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, and Robert B. Jackson, states, “An animal achieves homeostasis by maintaining a variable, such as body temperature or solute concentration, at or near a particular value or setpoint.” Also, the textbook informs us that homeostasis predominantly relies on negative feedback. Negative is a control mechanism that reduces, or “damps,” the stimulus. The article, “Negative Feedback and Blood Glucose Regulation,” written by Stephanie uses blood glucose as an example to support the fact homeostasis relies heavily on negative feedback. The article states our body uses this feedback to regulate our glucose levels. The body responds differently depending on whether the glucose levels are increasing or decreasing. For example, “when levels increase, the beta cells secrete insulin which then converts glucose to glycogen so that extra glucose can be stored restoring glucose levels to a normal level. When levels fall, the alpha cells secrete glucagon which converts stored glycogen to glucose increasing levels back to normal.” This proves that homeostasis relies heavily on negative feedback because when increasing and stimulating the liver to convert glucose to glycogen, the form can actually be

As your blood sugar level drops, so does the secretion of insulin from your pancreas.

Homeostasis mechanisms assist the body in maintaining a consistent internal environment even when external conditions are changing. For instance, during exercise the respiratory and circulatory systems main function is to maintain homeostasis. The feedback mechanism can either be positive or negative. A negative feedback mechanism is a stabilizer in correcting and returning to its natural state. Thermoregulation regulates the body’s temperature; this is controlled by negative feedback. Blood sugar levels are regulated by a negative feedback mechanism. Diabetes mellitus is a life

Insulin and glucagon are vital hormones in every human’s body. Before studying how these hormones relate and work together, what they are must first be determined. An antagonistic hormone is a type of hormone that acts to return body conditions back to the acceptable limits from opposite extremes (“Antagonistic Hormones”). Insulin is a hormone that tells cells throughout the body to take in glucose from the bloodstream, and glucagon is a hormone that works to balance the actions of insulin; they are antagonistic hormones (Morris). In this paper, the correlation between these hormones will be examined, how they benefit the body, and what

The sugar content in blood rises following a meal. Receptors subsequently react to this change. In a non-diabetic, the pancreas secretes insulin into the blood designed to lower blood sugar levels as a response to the rise. Once blood sugar levels reach normal levels, the release of insulin ceases. This process is referred to as ‘homeostasis. Insulin release also stimulates glucose stores in the liver forming glycogen. Gglucose can also affect osmosis and respiration.

Homeostasis is the stoppage of bleeding or hemorrhage. Homeostasis bleeding can also referred to the stoppage flow through the body or the organs. During homeostasis the vessel was close and become constricted. The word homeostasis comes from the Greek root heme meaning blood, stasis meaning to halt. You can apply thrombin to release the vessels. Other mechanisms that form from homeostasis are vasoconstriction, platelet plug formation and clotting of the blood.

When the blood glucose level is too low glucagon is released and this works in the causes the blood glucose levels to rise. It does this because excess sugar is stored in the liver as glycogen, and it is broken down into glucose and then released into the blood. Once the glucose is released into the blood it is detected by the stimulus and once it has moved back towards the set point glucagon is not released at as high of rates. On the other hand when a person has just eaten a big meal and their blood glucose levels are too high the stimulus is detected, and once again the pancreas recognizes this. In this case however, the beta cells of the pancreas, which are insulin are secreted to dampen the stimulus.

The control of glucose levels in the blood is an example of homeostasis. Homeostasis is the body maintaining a stable internal state despite changes in the external environment. This homeostasis is achieved through negative feedback. Negative feedback is when a deviation of normal levels is brought back to the normal level by a corrective response. The larger the deviation from the normal, the greater the corrective response will be. The level of glucose in the blood achieves homeostasis by its removal from the blood being balanced with its entry into the blood.

Low blood glucose levels are detected by the alpha cells of the pancreatic islets, which respond to hypoglycaemic stimuli by producing the hormone glucagon. Glucagon is a polypeptide hormone that acts in an antagonistic way to insulin, causing blood glucose levels to rise and promote processes that spare glucose utilisation. It has a powerful effect on the liver which stimulates the production of glucose from stored glycogen and amino acids. The insoluble glycogen molecules found in muscle and liver cells is able to be converted back into soluble glucose molecules which then dissolves into the bloodstream, rising blood glucose levels, and glucagon therefore having a hyperglycaemic effect on the body. This process is called gluconeogenesis.

Glucagon stimulates the liver to breakdown glucagon and fixes certain Nan carbohydrates, including amino acid, into glucose. This increases the blood sugar concentration very efficiently. Glucagon secretin prevents hypoglycaemia since happening when glucose concentration is comparatively small (Moini, n.d.). Insulin work in a manner opposite of glucagon, it decrease blood glucose concentration endorses amino acid transport into cells, increase protein synthesis, and stimulates cells to make and store fat. Insulin secret decrease as glucose concentration

Approximately 90% of the pancreas is exocrine. The remaining approximate 10% of the pancreas acts as an endocrine gland that consists of around a million pancreatic islets called the islets of Langerhans. Inside the islets are three main types of cell that detect the amount of glucose in the blood: alpha, beta and delta cells. Situated mostly around the outside of the cell are alpha cells, mainly towards the centre are beta cells, and scattered throughout in a limited number are delta cells. The pancreas secretes a number of hormones that help with the stasis of blood-glucose levels in humans including antagonistic hormones insulin and glucagon, as well as somatostatin. A hormone is a chemical messenger which is made in glands and carried around the body in the bloodstream to coordinate many body processes. Blood glucose homeostasis regulation is a form of negative feedback which is a self-correction mechanism of the body. This means that if an individual is hyperglycaemic, insulin output increases and glucagon output

Homeostatic control is a control system that keeps conditions constant an example is homeostasis which is the maintained of constant internal conditions in an organism. Homeostasis includes the regulation of temperature, which is the process that maintains the stability of the human bodies response to changes in external conditions. If the water concentration in the blood falls then more water absorbing is needed so that less water is lost in your urine and ADH production is increased. Water concentration is lost from the body by sweat and in urine and ADH production is decreased. Homeostatic control mechanisms include receptors, which sense components that monitors and respond to changes in the environment. The