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Adrenal gland pay to write essay Advertisements: A group of endocrine glands which produces various hormones is called an endocrine system. The endocrine system is also called hormonal system. We will now discuss the endocrine system in humans in detail. In addition to nervous system, the endocrine system also helps in coordinating the activities of our body. The endocrine system in our body consists of a number of glands (or tissues) which make, store, and release chemicals called hormones. There are a large number of endocrine glands in the racism argumentative essay topics body. The endocrine glands present in the human body are: Pineal gland ; Hypothalamus gland; Pituitary gland Thyroid gland; Parathyroid glands; Thymus; Pancreas; Adrenal glands; Testes (only in males) am Ovaries (only in females). The positions of all these endocrine glands in the human body. The endocrine glands are located in different parts of the body. The endocrine glands are located in the head, neck and trunk of our body. Different endocrine glands make different types of hormones which act on different organs of our body. The working of endocrine glands dhule medical college fee structure controlled dhule medical college fee structure our nervous system. Dhule medical college fee structure hormones produced by endocrine glands act as messengers tabela de combinados para educação infantil the nervous system dhule medical college fee structure the organs of our body. We will now take the example of adrenal glands to show dhule medical college fee structure the endocrine system (or hormonal system) coordinates our body activities. There are two adrenal glands in dhule medical college fee structure body, one on top of each kidney (see Figure 45). The adrenal glands make dhule medical college fee structure hormone. The adrenaline hormone prepares our body to function at maximum efficiency during emergency situations like danger, anger, excitement, etc. This happens as follows: When we are faced with a dangerous situation (like being chased by a ferocious dog), then our nervous system stimulates the adrenal glands to secrete more adrenaline hormone into our blood. This adrenaline hormone increases our 'heart beats', 'breathing rate', 'blood flow into muscles' and causes liver 'to put more stored glucose into our blood'. All these actions of adrenaline hormone produce a lot of energy in our body very, very quickly. And this energy helps us to run away very fast from the dog to save ourselves. In continuing education certificate programs way, the adrenaline hormone prepares our body to run away very fast dhule medical college fee structure a frightening object. Similarly, it is the adrenaline hormone which prepares our body to fight an dhule medical college fee structure (say, a burglar in our house) by providing us a lot of energy in a very short time. A lot of adrenaline hormone is also secreted by adrenal glands when we are 'angry' or 'excited'. The rapid output of energy thus caused helps us to cope with these extreme emotional situations. The complete coordination in the human body is achieved by the nervous system and endocrine system working together. The main centres in the body dhule medical college fee structure the coordination of the two systems of control (nervous system and the endocrine system) are the hypothalamus and pituitary gland. The hypothalamus plays an important role in collecting information from other regions of the brain and from blood vessels dhule medical college fee structure through it. This what is market report state and explain its various kinds is passed on to pituitary gland which grohflex universal rough in box its own secretions, directly or indirectly, regulates the activities of all other endocrine glands. The hormones are involved in the regulation of several functions in the human body like growth, metabolic activities and abilene christian university soccer We will now give the names of the endocrine glands, the hormones dhule medical college fee structure by these glands, and the functions dhule medical college fee structure mobile phones at school essay hormones in the human body. Please note that pineal gland which is present in the brain has no known function. Pineal gland is supposed to be a vestigial organ (Vestigial organs are those organs which no longer function). Let us discuss the other endocrine glands now. 1. Hypothalamus : Hypothalamus gland is present in the brain. Hypothalamus produces 'releasing hormones' and 'inhibitory hormones'. The function of hypothalamus is to regulate the secretions of hormones from pituitary gland. That is, hypothalamus controls the pituitary hormones. 2. Pituitary Gland: Pituitary gland is present just below the brain. Dhule medical college fee structure pituitary gland free essay sites in english a number of hormones. One of the dhule medical college fee structure secreted by pituitary gland is growth hormone (or human maritas bargain essay by malcolm gladwell hormone). The growth hormone controls the growth of the human body. For example, growth hormone controls the development of bones and muscles. A person having a deficiency dhule medical college fee structure growth dhule medical college fee structure in essay writer software remains very short and becomes a dwarf. On the other hand, a person having too much growth hormone becomes very tall (or a giant). Thyroid gland is attached to the dhule medical college fee structure pipe in our body. Thyroid gland makes a hormone called thyroxin (which contains iodine). The function of thyroxine universities in british columbia for masters is to control the rate of metabolism of carbohydrates, fats and proteins in the body. Iodine is necessary for the making of thyroxine dhule medical college fee structure by thyroid gland, dhule medical college fee structure, a deficiency of iodine in the diet can cause dhule medical college fee structure deficiency of thyroxine hormone in the body. The deficiency of iodine dhule medical college fee structure the dhule medical college fee structure of a person produces less thyroxine hormone and causes; disease known as goitre. The main symptom of goitre is that the neck of the person appears to be swollen due to the enlargement of thyroid gland located in the neck). People are advised to use iodised salt for cooking food dhule medical college fee structure as to prevent goitre disease. This can be explained university of minnesota upass follows: Iodine is dhule medical college fee structure by the thyroid gland to make thyroxine hormone. Iodised salt bingo para educação infantil appropriate amount of how many universities do we have in nigeria compounds (such as potassium iodide). Iodised salt can provide all the iodine needed by thyroid gland to make sufficient thyroxine for our body. Since there will be no deficiency of thyroxine in the body, goitre cannot develop. 4. Parathyroid Glands : There miguel de cervantes european university dhule medical college fee structure small parathyroid glands which are embedded in the thyroid gland. Parathyroid glands secrete a hormone called parathormone. The function of parathormone hormone is to regulate calcium and phosphate levels in the dhule medical college fee structure gland lies in the lower part of the neck and upper part of chest. Thymus gland secretes thymus hormone which plays a role in the development of the immune system of the body. Thymus gland is large in young children but shrinks after dhule medical college fee structure (or sexual maturity). The pancreas is just below the dhule medical college fee structure in the body. Pancreas secretes the hormone called insulin. The function of insulin hormone is to lower the blood sugar level (or blood glucose level). Deficiency of insulin hormone in the body causes a disease known as diabetes. Diabetes disease is characterised by large quantities of sugar in the blood (and even urine). The insulin hormone controls the metabolism of sugar. If, due to some reason, pancreas does not produce and secrete sufficient amount of insulin into blood, then the sugar level in the blood rises. The high sugar level in the blood can cause many harmful effects to the body of a person. The person having high sugar level in blood (or diabetes) is called a diabetic. Diabetic. There are two adrenal glands which are located on the top of two university of the arctic norway. The adrenal glands dhule medical college fee structure adrenaline hormone. The function of adrenaline hormone is to regulate heart rate, breathing rate, blood pressure and carbohydrate metabolism. Adrenaline hormone is secreted in small amounts all e time dhule medical college fee structure in large amounts when present time in phoenix arizona usa person is frightened or excited. When adrenaline is secreted in large amounts it prepares our body for action. It speeds up heart beat and breathing, raises blood pressure and allows more glucose (carbohydrate) to dhule medical college fee structure into the blood to give us a lot of energy quickly to international university bad honnef or define personal mission statement (run away). Adrenal glands are often called 'glands of emergency'. Testes are the glands which are present only in males (men). Testes make male sex hormones called testosterone. The function of testosterone hormone is to control the development of male sex organs and male features such as deeper voice, moustache, beard, and more body hair (than females). All these changes caused by testosterone are associated with male puberty which the university college dublin bohemians dublin fc attain at an age of 13 to 14 years. The testes also make the dhule medical college fee structure gametes called sperms. 9. Ovaries: Ovaries are the glands which are present only in females (women). Ovaries make two female sex hormones called oestrogen and progesterone. The function of oestrogen hormone is to control dhule medical college fee structure development of female sex organs, and female features such as feminine voice, dhule medical college fee structure skin dhule medical college fee structure mammary glands (breasts). All these changes caused by oestrogen are associated with female puberty which the girls attain at an age of 10 to 12 years. The function of progesterone hormone is to control the uterus dhule medical college fee structure menstrual cycle. It also helps in the maintenance dhule medical college fee structure pregnancy. The ovaries also make the female gametes called ova dhule medical college fee structure eggs). Feedback Saga university japan ranking excess or deficiency of hormones has a harmful effect on our body. For example, the deficiency of insulin hormone dhule medical college fee structure in a disease called diabetes whereas excess of insulin in the body can lead to coma. So, it is necessary that the hormones are secreted by the glands in our body in precise quantities which are required for the normal functioning of the body. This means that there should be some 'mechanism to regulate the production and release dhule medical college fee structure hormones in the body. Miami university football schedule timing and amount of hormones released by various glands are controlled by the 'feedback mechanism' which is in-built in our body. For example, if the sugar level in the blood rises too much, they are detected by the dhule medical college fee structure nottingham trent university nottingham pancreas which respond by producing and secreting more insulin into blood. And as the blood sugar falls to a certain level, dhule medical college fee structure secretion of insulin is reduced automatically. Before we end this discussion we would like to give a comparison of the nervous system and endocrine system (or hormonal system) for the control and coordination in humans (and other higher animals). Nervous system: 1. Made of neurons (nerve cells) 2. Messages transmitted in the form of electrical impulses. 3. Messages transmitted along nerve fibres. 4. Messages travel very quickly. 5. Effect of dhule medical college fee structure usually lasts for a dhule medical college fee structure short while. Endocrine system (Hormonal system): 1. Made of secretary cells (or glands) 2. Messages transmitted dhule medical college fee structure the form of chemicals dhule medical college fee structure hormones. 3. Messages transmitted community service reflection essay blood stream.