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Explain the importance of homeostasis in maintaining the healthy functioning of the body. examples from diabetes

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(D2) Explain the importance of homeostasis in maintaining the healthy functioning of the body Temperature regulation of fall and rise above normal ranges The hypothalamus in the brain behaves as a thermostat and changes in the blood temperature. When the temperature of the blood comes the hypothalamus falls, this delivers impulses to organs in the body setting the heat reduced less. The opposite happens when the temperature of the blood enters the hypothalamus rises. The hypothalamus tends to activate the sympathetic nervous system and increase he heart rate when the body gets hot. The thermo-receptors point out an increase in the body temperature delivering messages to the brain. The body faces hypothermia is the body temperature falls or rises above their normal ranges. When the body temperature gets too cold or too hot, messages are mailed from the thermo-regulation in the skin or from the blood to the brain and the hypothalamus. The change that is senses by the brain allows a person to change in their attitude for example, when a person feels cold they may close a window. During Hypothermia when the body temperature falls below the normal temperature of the body can be dangerous as the heat energy is lost from the body than it is produced. Brain is the first feature affected making the person clumsy and slow. Hypothermia Hypothermia is a state where the body's normal body temperature of 37�C (98.6�F) drops below 35� (95�F). When the body is exposed to cold the mechanisms are unable to fill in heat that is lost to organisms surroundings. Hypothermia is caused normally when a person is around a cold environment or staying outside for a long period of time in the cold rain or wind. When the body gets too cold it usually acts fast in order to become warm and giving a message to the brain allowing the person to wear more layers of clothing or going inside. ...read more.


This is what leads to high blood glucose level, this is known as hyperglycemia. Insulin is made by pancreas when the volume of blood increases, the pancreas senses the volume and discharges insulin at full speed in order to remove glucose. Also too much insulin or exercise without enough equivalent food taken in diabetics can be operated in low blood sugar. This is where the body goes down as it does not contain enough sugar needed. Through both ways it is risky which is why it is vital to keep the blood sugar regulation balanced at its normal range 90mg/100ml. Too much or too less Glucose in the body If too much glucose is produced in the blood then the receptors in the pancreas sense this and they deliver a message to the brain. Messages are also delivered to cells in order to create insulin; the insulin is released into the bloodstream by using the capillaries. This increases the eating of glucose by all the cells in the body and makes discussion of glucose into glycogen. This lowers the quantity of glucose in the blood in order to return stable. It then gives the body a feeling of being full. If less glucose is stored in the blood then also a message is delivered to the brain again giving the feeling of hunger in order to take in food. Glucagon is also produced in the body by specific cells. Glucagon is discharged into the bloodstream by the use of capillaries and makes glycogen into glucose in the liver. The liver then converts amino acids into glucose, the quantity of glucose in the blood rises so the balance is sustained and attained. Cells create insulin and affect all the cells in order to take in glucose; cells also make glucagon and mainly affect liver cells in order to break down glycogen. Some glucose is stored in the body and can give diabetes later on in life starting from an early age. ...read more.


This usually occurs when the blood is forced through the arteries at an increased pressure. High blood pressure takes place of the tightening of small arteries known as arterioles. The Arterioles tend to control the blood flow through the body, when the arterioles tighten the heart is forced to pump harder in order to push blood through the small space. This creates pressure inside the vessels as they tend to rise. A rapid heartbeat is when the heart is beating faster than normal; a normal heart rate is 60 to 100 beats per minute. When exercising or carry out an activity your heart will normally beat faster, this allows the heart to pump blood through out your body providing oxygen to the tissues. However when a person faces fear, stress or nervousness the heart speed will rise. Some heart rise can cause serious heart conditions and may be required for medical attention. This is why it is very vital for people to maintain our breathing rate, if pressure gets too much our body cells would not function properly and this is what causes the cells to fail in our bodies. There are other various ways which causes of rapid heartbeat such as: > Infections caused in the lungs this may be known as pneumonia > Infection in the blood that may produce fever > Low blood pressure > Thyroid disorder > Heart disorder regular > Dehydration Physical causes of rapid or irregular heart rate: > Arrhythmia > Tachycardia > Organic heart disease > Shiverness > Heart failure > Extra systole > Infections > Artery disease This is why it is important for the body to have a normal heart rate so that the blood circulation could run normal and the muscle cells gaining the right amount of oxygen needed in order to maintain the body and develop more. It is also needed so that heart problems are not caused such as the ones mentioned above. Whilst the breathing rate changes, the negative feedback will restore the pulse. This will bring the speed back to its normal position. ...read more.

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