A Fascinating Organism Case Study Example | Topics and Well Written Essays - 500 words

A Fascinating Organism - Case Study Example This can range from maintaining a basic pH in the bloodstream to temperature. The main part of the brain responsible for maintaining homeostasis in the hypothalamus, which sits under the thalamus and above the pituitary gland. This strategic location allows it to communicate with the thalamus, which processes sensory information, in order to mediate the hormonal response of the pituitary gland. The feeling of cold is registered through special receptors located in the skin. When a certain threshold is reached based on temperature, sensory information is routed through a variety of different pathways. Some of these pathways lead to the spinal cord, which necessitates the fast reflex, whereas some reach the somatosensory cortex and the thalamus where it is processed. The act of maintaining internal body temperature in the cold causes certain physiological responses. Blood vessels become constricted through movement of tissues surrounding in order to keep the blood concentrated around t hose organs imperative to survival. In addition, brown fat plays an important part in insulating the body and providing warmth. The outer extremities of the body such as fingers, toes, genitalia, etc. are the most susceptible to frostbite because they lack sufficient blood flow to these areas that would normally be kept warm through the flow of blood. When making a diagnosis in the case of an osteopathic injury, there are many different types of medical and physical tests that a doctor will run in order to find the location of the injury. MRI stands for magnetic resonance imaging. Surgeons use this scan in order to look at the anatomy of the body. In the case of osteopathic injuries, it will show tears in ligaments, muscles, and any other abnormalities/damage that might have occurred in the area. Aging is simply put as the degradation of biological processes. As humans age, the ability to regenerate and heal becomes harder.

Engage with the topic of Pleistocene Re-wilding Essay

Engage with the topic of Pleistocene Re-wilding - Essay Example ies we know today came about as a result of evolution of mega carnivores and herbivores and therefore biodiversity is not what it is without this segment of megafauna. The plan to re-wild America is therefore the most suitable way out of total extinction of these species because even as debate is being generated on this move, more large vertebrates from Asia and Africa are constantly finding homes in America in the form of zoos and private reserves (Donlan, 913). It is estimated that there are more Asian tigers in America that in the wild. The process of re-wilding North America has in fact started and all that is left is to move these animals in captivity to the free world of the US landscapes. The success of this process will be founded on the following tenets: That human beings have a natural attraction to megafauna which the explanation to why San Diego’s Wild Animal Park receives 1.5 million visits annually much more than the total number of visits to US national parks that are homes to rodent and other small animal species (Donlan, 914). Releasing the captured animals couples with their relationship with the American ecosystem given t heir extinct ancestors roamed the American plains is enough reason to get the process of re-wilding started. Wild Bactrian camels that are currently facing extinction in the Gobi desert had their ancestors, Camelops, originate from North America and therefore taking them back home to America would rescue this species from total extinction. Another basis is that, even with the surging world human population, regions of Southwest America that are the possible home of these re-introduced species are experiencing population decline providing sufficient room for the megafuna to roam and reproduce. As the custodians of world heritage, the human race is ethically bound to ensure large vertebrate are not extinct and this responsibility, coupled with the potential economic and biological benefits that come with re-wilding, provides