Factors Affecting The Human Body

Homeostasis is what allows our internal system to maintain at a constant condition. In order to maintain equilibrium the body must communicate using the control system. It is essential that the body monitors its conditions whether that be blood pressure, thirst sensation or body temperature (this is either gained or lost). Negative feedback is most important and comes first, this allows for the body to correct itself and get back to a set point when it is off track. There are three components that link with this feedback. A sensor (receptor) sends signals to the control center that something is unusual, the control center compares the many values of our normal body range and decides

Electrolyte balance is also a crucial aspect in maintaining homeostasis in the body. According to McCance, the

Conditions in the body have to be controlled with narrow limits. This is called homeostasis. These conditions include water content, ion content, body temperature and blood glucose concentration.

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.

Homeostasis regulates body temperature, for example, enzymes need to have a specific constant temperature to work at their best ability. Cells rely on enzymes to speed up chemical reactions. It also regulates the bodies water balance, which cells need to transport oxygen, dissolved food and carbon dioxide.

Water is the most abundant compound in the human body. Water is ESSENTIAL for the process of homeostasis. Water increases the volume of blood which in result affects blood pressure and the heart rate. Also, if there is a drop in blood volume there is also a drop in the blood pressure. This then triggers us to become thirsty, and drinking water increases the volume again stabalizing the body.

Brenner (2007) explained that the primary function of the kidneys is to excrete waste products resulting from metabolism by filtering them out of the bloodstream into urine. The kidneys also have many homeostatic functions such as maintaining acid-base homeostasis and electrolyte concentrations, and regulating plasma osmolarity and blood pressure (Brenner, 2007). The kidneys secret and interact with a variety of hormones such as

In the human body the internal temperature is maintained at 37 degrees Celsius and this is maintained as a result of homeostasis. Homeostasis is the process of balancing or keeping a stable internal environment in the body. A majority of organ systems in the body contribute to homeostasis, however there are two very important organ systems that play a massive role within this process, and they are the endocrine and nervous system. Both are crucial as they permit communication in the body and the integration of cells as well as tissue functions.

The urinary system is an example of how homeostasis works in the body in the way that it regulates fluids through excretion. The kidneys deal with the excretion of excess salts, toxins and metabolic wastes as well as regulating blood pressure, water balance, acid-base balance and maintaining a homeostatic pH of 7.35 to 7.45. When the kidneys stop working either from acute or chronic failure it leads to disruption in homeostasis. Many things such as toxic drugs, cancer, high blood pressure or diabetes can cause renal failure. The body is so greatly affected as a result because urine production is disrupted and water, salts and metabolic wastes are retained in the body, which causes the homeostatic

Homeostasis is the body’s way of maintaining a steady balance in the internal organs regardless of fluctuations in the external environment. Homeostasis is an important function in all humans and animals as keeping a stable environment requires constant adjustments as the environment changes. Homeostasis requires the coordination of both the endocrine (hormonal) and nervous systems; they regulate the body’s internal organs.

What is homeostasis? Homeostasis is the ability or tendency of an organism or cell to maintain internal equilibrium by adjusting its physiological processes. (McGraw-Hill) How does the body maintain homeostatic balance? Each organ system helps in some way to maintain homeostasis. However, the organ systems also work together to maintain a constant internal environment. There are seven organ systems (Integumentary, Musculoskeletal, Endocrine, Cardiovascular, Lymphatic, Respiratory, and Nervous) within the body. (McGraw-Hill)

There is a pair of kidneys in the human body. They are situated towards the back of the body under the ribs, just at the level of the waist where one on either side of the body. Each kidney is composed of about one million units which are called nephrons and each nephron consists of two parts: a filter which is called the glomerulus and a tubule leading out from the nephron (Cameron 1999). According to Marshall and Bangert (2008) the kidneys have three major functions. Firstly, the kidneys are excretion of waste from plasma in the blood. The second function is that, they maintain of extracellular fluid volume and composition. Lastly, the kidneys have a role in hormone synthesis.

Homeostasis is what physiological systems in our bodies do in order to maintain a stable internal environment. Stability is held together by the coordinated responses of the components involved to any stress or unfamiliar situation that the human body is put under that could disrupt its normal functioning conditions. Homeostasis must be maintained constantly in order for our bodies to be able to function properly and not under stress which could have major effects later on in life.

First I would like to start out with clarifying the different kinds of homeostasis in greater detail.

The term lipid refers to a broad category of molecules, which serve a wide range of purposes in nature. Lipids tend to be hydrophobic in nature but there are also lipids that are amphiphilic as well. It is this characteristic that allows these group of structures to serve a range of functions. In the human body there some important lipids include glycerolipids, glycerophospholipids, and sterols, and sphingolipids. Glycolipids are important as they serve as the body’s way of storing energy. Glycerphospholipids are important as they make up the structure of cell membranes.1 Sterols are important because they are necessary for membrane rigidity and used as hormones and means of signaling in the body. Sphingolipids, particularly Sphingomyelin are another group of lipids that serve an important part of cells structure as they are found in plasma membranes of myelin sheaths.1 With this in mind, lipids are regulated and errors in the mechanism of storage and degradation can have a negative effect on the body.