What´s Homeostasis Essay examples - 1623 Words

Homeostasis is the human body’s maintenance of stable, constant internal conditions. To achieve this equilibrium consistently in various environmental circumstances, internal and external factors are monitored and altered as the body requires. Different types of receptors are responsible for detecting specific environmental stimuli. For example Chemoreceptors detect changes in chemical concentrations within the blood (eg. Carbon Dioxide (CO2), pH and Oxygen (O2)) and Mechanoreceptors detect sound, touch and pressure. The nervous system and the endocrine (hormonal) system both act as regulatory pathways, linked primarily by the hypothalamus and pituitary gland in the brain. They are used by the body to communicate disturbances in response†¦show more content†¦This is done by glands, such as the pituitary, adrenal and thyroid, as well as organs such as the pancreas, kidneys and reproductive systems. It is this system that is primarily responsible for the fluctuation of blood glucose. The main two hormones which effect its regulatory are insulin, produced from ÃŽ ² (beta) cells and glucagon, produced from ÃŽ ± (alpha) cells in the pancreas. 3) As can been seen in the diagram above, Insulin acts as an extracellular signalling molecule, attaching itself to receptors on the membrane of cells. This communicates a signal which triggers receptor proteins, Gluts, to allow the transfusion of glucose through the plasma membrane. This process causes a steady drop in blood glucose concentration and gives cells the necessary energy to function. Glucagon acts as a hormone which can raise the blood glucose level by stimulating the conversion of glycogen into glucose as seen in the equation below. Glycogen is stored in the liver as an energy storage polysaccharide, however it must by broken down into glucose, as a monosaccharide, before it can become usable. Glucagon and insulin act as increase/ decrease effectors of a feedback system in order to maintain glucose concentration in the blood between about 80 and 130 mg/dl. When glucose concentration is below the equilibrium, the drop is detected the pancreas. Low blood sugar is called hypoglycemia (hypo meaning low). Glucagon is then released by pancreatic alphaShow MoreRelatedHow Does Homeostasis Affect Homeostasis1413 Words   |  6 Pages Affects on Homeostasis When biological systems tend to maintain stability while adjusting to conditions that are optimal for survival is Homeostasis. Homeostasis is kept in order by dynamic equilibrium, in which changes occur, but resists outside forces of change. However when a system is disturbed, feedback mechanisms control take action to reestablish a new balance. Homeostasis is important because by maintaining homeostasis, organisms remain healthy, strong and stable, with protection fromRead MoreThe Process Of Homeostasis And Homeostasis1061 Words   |  5 PagesThe Process of Homeostasis In order for our bodies to function effectively, there is a series of events that occur at the biological and chemical level in our bodies. These events enable the human body to withstand various stresses that may be imposed on our bodies. These â€Å"events† that occur are more specifically known as the process of homeostasis. In this essay I will be discussing the process of homeostasis and how homeostasis works. Furthermore, I am discussing thermoregulation, osmoregulationRead MoreHomeostasis And Background Information : Homeostasis1048 Words   |  5 PagesRaymond Yee Southerd Physiology 6 22 September 2015 Lab 1: Homeostasis Background Information: Homeostasis is the ability or tendency to maintain internal stability in an organism to adjust to the environmental changes. An example of homeostasis is a thermostat that operates by switching heaters and air-conditioners on and off in response to the temperature inputs’ change. The two types of homeostasis that occurs are positive and negative feedback loops. In a positive feedback loop, an organismRead MoreEvolution Of A Common Single Celled Origin1278 Words   |  6 PagesBiology, there are four â€Å"Big Ideas†. The first one is â€Å"The process of evolution drives the diversity and unity of life†. The second is â€Å"Biological systems utilize free energy and molecular building blocks to grow, to reproduce and to maintain dynamic homeostasis†. The third is described as, â€Å"Living systems store, retrieve, transmit and respond to information essential to life processes.† And finally the four is â€Å"biological systems interact, and these systems and their interaction possess complex properties†Read MoreA Brief Note On Coagulation And Clotting Factors Essay1045 Words   |  5 Pagescompensatory mechanisms of homeostasis are quickly overwhelmed and the inability to clot, coagulopathy, becomes a new concern. Clotting factors are essentially tied up, causing excessive bleeding and an ironic change in the blood’s ability to clot. This is a life-threatening condition which could lead to bleeding into the organs. When disseminated intravascular coagulation occurs over an extended period it can be considered a chronic condition. With this change in the body s homeostasis and unlike an acuteRead MoreThe Human Body: A Finely-Tuned Machine Essay example1241 Words   |  5 Pageshuman being. Also, homeostasis, the regulatory of body temperature plays a survival role in maintaining body functions. The integumentary system (skin) is the largest, and the most important part of the body. The skin is just one of t he organ systems that will be discussed (Thibodeau Patton, 2008). The body is expected to perform specific duties at specific times the organ systems as a whole, the most important organ system the integumentary system, and homeostasis, are what enables the bodyRead MoreExplain The Essence Of Homeostasis1241 Words   |  5 Pages 1. Explain the essence of homeostasis. Why is it crucial for the bodily systems to maintain homeostasis? Homeostasis is the property of a system where the variable which could be a substance or temperature, is active and regulated to always remain constant. This regulation occurs inside a defined environment. A primary example is a humans body temperature. It is crucial for the bodily systems to maintain homeostasis because that is how cells and organs function properly. A primary example is whenRead MoreCell injury and cell death Essay example628 Words   |  3 Pagesï » ¿Ã¢â‚¬Å"Common biochemical themes are important to understanding cell injury and cell death regardless of the injuring agent† (Heuther McCance, 2012). Cellular injury arises when a cell is unable to sustain homeostasis. The injury can be reversed if the cell can recover from whatever damage was done but if it does not recover the cell will die. The three common forms of cell injury are hypoxic injury, fr ee radicals and reactive oxygen species injury, and chemical injury. The most common form of cellRead More##c Effects Of Feoptoxic Effects Of Maternal Ethanol ( E ) Intake?725 Words   |  3 Pagessubpopulation of cells with the lowest GSH content and normalizing this redox imbalance by stabilizing neuron GSH content prevents the neuron death [5]. Thus, a mechanism underlying E-induced fetal neuron apoptotic death is OS which has propelled research into what is now called redox control of teratogenesis [15, 16] or the â€Å"Redox Hypothesis† (Figure 1). This redox hypothesis is a disruption of cellular redox circuits which are maintained by thiol disulfide couples including GSH/GSSG and cysteine/cystineRead MoreEndocrine System Is The Most Important System1414 Words   |  6 PagesHave you ever wondered what endocrine system is or what it does? Ever wondered what it was made up of or how it helps with functioning our bodies? Well, the endocrine system is really important just as all the other systems in our bodies are important to us. The end ocrine system is made up of multiple glands in our body that are used for the production and secretion of hormones into the blood stream. The endocrine system helps us in our growth and controlling the body s metabolic activity for everyday