Explain The Essence Of Homeostasis

Calcium can sometimes act like a natural diuretic, helping the kidneys release sodium and water. Also, when calcium levels in the blood drop, parathyroid hormone (PTH) is released, which causes calcium to be released from the bones to increase calcium blood levels and PTH can raise blood pressure. Scientists are still trying to figure out how and why, but

When the tissue was immersed in calcium free solution and stimulated with Ach via the PMC pathway, a small contraction (1.15g) was observed compared to the baseline contraction trace (6.37g). Contraction recovered when the bathing solution was changed back to normal Krebs (5.63g). For the next stimulus, K+-depolarising solution, the baseline control produced a force of 6.17g in normal Krebs solution. When calcium free K+-depolarising solution was used to stimulate the tissue in calcium free solution, via the EMC pathway, the tissue barely contracted at 0.09g. In the second experiment, verapamil was added to the bathing solution. When the tissue was stimulated by Ach in the presence of verapamil, it

The actual word homeostasis means "steady state". Homeostasis describes how the body regulates its process to keep its internal conditions as stable as possible. Homeostasis is

Homeostasis is the process of maintaining a fairly constant interval environment. Homeostatic mechanisms help us to be independent of our external environment. It helps us regulate our body temperature, pH, concentration of dissolved substance in the body fluids, concentration of glucose in blood, concentration of oxygen and carbon dioxide in the blood and body fluids, blood pressure and concentration of metabolic wastes. Without it, we wouldn’t be able to survive and adapt to our environment.

The reduction of circulating PTH by blood calcium leads in turn to decrease in levels of circulating PTH and reduction action of 1-alpha hydroxylase in the kidney [11]. Deficiency of VD has been associated with many adverse health problems including muscle weakness, infectious diseases and mortality in the critically ill patients

Homeostasis is a biological process that maintains a constant internal environment, regardless of what is going on in the external environment. This process ensures the bodily functions and chemicals are kept in a state of balance which in return allows the body to function optimally. Homeostasis requires coordination of the hormonal (endocrine system) and nervous systems, which together regulate the activity of the body’s organ systems. The regulatory activities are constantly adjusted in response to stimuli (change) from both the internal and external environment. A change influenced by the external environment can cause a state in the body that will take it away from the normal, the body will act to counteract this change and return the internal environment back to a steady state. This is negative feedback. Negative feedback has a stabilising effect reducing changes from a set point and returning internal conditions to a steady state. Most body systems e.g. controlling blood glucose levels, obtains homeostasis through negative feedback which makes the negative feedback system critically important in obtaining homeostasis. However there is also positive feedback which is a system that results in the escalation of a response to a stimulus. It causes instability in the system and is used when there is a specific outcome required. Positive feedback ceases once the natural resolution is reached e.g. baby is born, pathogen is destroyed, blood clot forms. This system is not used

Target cells have receptors that are specific to the signaling molecules. The binding of hormones to the receptors on or within the target cell produces a response by the target cell.

All systems must have homeostasis to maintain stability and to survive. Homeostasis is so important because it can allow an animal to adapt to a changing environment. The body attempts to maintain a constant level of physical output to achieve homeostasis. However, it can only work within its limits, where extreme conditions can disable the negative feedback mechanism.

The normal prostate is a small squishy gland about the size of a walnut and is located under the bladder and in front of the rectum. The urethra runs directly through the prostate (McCance, & Huether, 2014). The nerves that control erectile function are attached to the sides of the prostate. It is a gland that is important for reproduction. The prostate gland undergoes first growth spurt during puberty and a second growth spurt during the fifth decade of life. BPH is a non-cancerous prostatic condition that develops at the transition zone that surrounds the urethra or urinary tube, due to the imbalance between androgen and estrogen secretion causing hyperplasia (Timms, & Hofkamp, 2011). Major symptoms of BPH is caused by this hyperplasia, which obstructs the urethra and bladder.

Cases of hypercalcemia can be further broken down into those that are PTH-dependent and PTH-independent (parathyroid hormone). PTH is usually elevated in physiological conditions when there is a drop of calcium in the blood and then returns to baseline once it corrects the problem. This is not the case however in hyperparathyroidism. Furthermore, PTH-related peptide (PTHrP), which is capable of acting on PTH receptors is abnormally elevated in certain cancers such cancers of the genitourinary tract and

Diabetic coma (needs insulin) – pulse will be weak/rapid. Breathing will be deep/sighing. Skin will be flushed, dry, and warm. Breath odor will be like musty apple or nail polish. LOC will be gradual onset of unconsciousness. The person may be

When the blood calcium level is too low the parathyroid glands will release parathyroid hormone (PTH) in order to raise the blood calcium level and once the level returns to normal the parathyroid glands stop releasing PTH.

Calcium deposition was significantly increased in aortic tissues at 12 wk feeding of HCD (p < 0.001). 10-DHGD markedly reduced calcium deposition with respect to HCC group (p < 0.001), suggesting anti-calcifying effect. Both ATOR and PTX also decreased aortic calcium content. 10-DHGD decreased calcium deposition more than ATOR and PTX (p < 0.001). A combination of both 10-DHGD and PTX produced an additive anti-calcific effect than individual treatment (Fig. 1).

Diabetes Mellitus is “a group of metabolic diseases characterized by hyperglycemia resulting from defects in insulin secretion, insulin action or both. It is a disease which is caused by the insufficient insulin secretion or decrease in the peripheral effects of insulin. It is a serious problem in terms of morbidity and mortality. The hyperglycemia is associated with long term damage, dysfunction and failure of various organs especially the eyes, kidneys, nerves, heart and blood vessels. It’s associated with many complications which includes blindness of the eyes and amputations of the extremities. It is also associated with neuropathy, retinopathy, and cardiovascular diseases which lead to mortalities.

Homeostasis can have many different applications in everyday life. It can mean keeping the body in balance, in regards to weight, health etc. It can mean keeping the mind in balance, not sinking into a depression, not succumbing to harmful addictions, or not caving under everyday stress. I feel this term is very important, because developing balance, or homeostasis in my life was one of the main ways I battled and won depression. I plan on entering the field of counseling psychology, because of this I want to learn more about homeostasis.