Diseases Of The Pituitary Gland
The pituitary gland is a tiny organ the size of a pea located at the base of the brain. Despite its size, it is generally regarded as the master gland of the body, because it produces many hormones that travel throughout the body, as it directs certain processes and/or stimulates other hormones producing glands as well. The pituitary gland also stores many different hormones such as;
Prolactin, which stimulates breast milk production after childbirth, and it affects hormone levels in the ovaries in women and in the testes in men, as well as intervening in fertility, Growth hormone (GH) which stimulates bone growth and cell
…show more content…
Occasionally some immune deficiency disorders such as sarcoidosis, histiocytosis X, and hemochromatosis can also cause this deficiency. Postpartum hypopituitarism occurs after severe hemorrhage during childbirth, since the massive loss of blood causes great tissue death in the pituitary gland, and when all the hormones released by the anterior pituitary gland fail, the disorder is usually referred as panhypopituitarism or complete pituitary failure. Hypopituitarism is a clinical definition used to describe when one or more functions of the gland are deficient, and it may refer to either or both anterior and posterior functional failure. Its incidence is of about 1 out 10,000 people suffering the disorder. In cases of hypopituitarism, single or multiple hormone deficiencies may be present concurrently, and the deficiencies affect each target organ activity or secretion on the thyroid, adrenal, or gonads glands, which also includes female and male sexual development. In children the condition results in …show more content…
Replacement of antidiuretic hormone resolves the symptoms of increased thirst and urination observed in DI sufferers. When a tumor is determined to be the culprit to DI, surgery to have it extracted may be the only alternative; however, hormone replacement therapy may be also imperative thereafter.
In general, pituitary disorders and diseases are rather common maladies, specially those derived from tumors, since at least one in five people may develop one, although they are often mostly benign; yet, despite being continuously researched, the cause of these remains unknown. Most of them arise without any genetic bias, and very few are inherited, but still the intensive research has not yet discovered why they are so common. In the past, pituitary tumors incidences were not included in the statistic collected by state cancer registries and the National Cancer Institute, but since 2002 it has been legally mandated that hospitals, clinics, and independent doctors report any pituitary tumor incidence rates when collecting data for cancer registry. This is indeed a very important step in the road towards finding further about the conditions prompting these cancerous growths to arise, because the pituitary gland is one of the most vitally
The location of the pituitary gland is in the sella turcica of the sphenoid bone and attaches to the hypothalamus(Marieb & Hoehn 441). The Hypothalamus is included in the function of the pituitary gland as it sends chemical stimulus to it(Marieb & Hoehn 442).Part of the pituitary is called the “ master endocrine gland” due to the fact that is produces many hormones that affect the whole body(Shannon 175).This part of the pituitary gland is called the anterior pituitary(Marieb & Hoehn 601). There are six hormones that the anterior pituitary secretes normally. These Hormones are growth hormones,thyroid stimulating hormones,adrenocorticotropic hormones,luteinizing hormones,follicle stimulating hormones and prolactin hormones( Shannon 175).The Hormone prolactin is one that in normal function stimulates the act of lactation for new mothers to feed their baby(Shannon 175).
Tumors or Lesions to the Hypothalamus Patient The Hypothalamus is a small area near the base of the brain just ventral to the thalamus. It has widespread connections with the rest of the forebrain and the midbrain. Partly through nerves and partly through hypothalamic hormones, the hypothalamus conveys messages to the pituitary gland, altering its release of hormones (Kalat, 2003). Any type of damage to a hypothalamic nucleus, such as tumors or lesions, may lead to abnormalities in one or more motivated behaviors, such as feeding, drinking, temperature regulation, sexual behavior, fighting, or activity level.
The thyroid gland is one of the largest endocrine glands located in the neck. The thyroid glands major role is determining how the body uses energy, makes proteins and how sensitive it is to other hormones found in the body. With a healthy thyroid gland one can produce sufficient thyroid hormones needed for the body. The following elaborates on the thyroid hormone , from anatomy and function , production, and known diseases.
The hormones produced from the endocrine system come from a wide range of different places. Among those responsible for hormone production are the glands and a few organs as well. The glands that are involved are the pituitary, thyroid, thymus, parathyroid, and adrenal. The organs, which also play a vital part, are the pancreas, gonads, kidneys, heart, and parts of the digestive tract. All these different glands or organs work together in the production of certain hormones. Those produced in one location will almost always have an effect on many other areas of the body, not just the surrounding tissues.
...ll gland at the base of the brain, under the control of the hypothalamus, can signal the adrenal glands to increase the production of stress hormones such as cortical and adrenaline even further.
The pituitary gland is the administrator or brains of the operation. Does anyone know where the pituitary is located? That’s right, the brain. The body is always about convenience and maximum functioning. The pituitary sends a signal in the form of TSH to the thyroid gland with information on how much energy (thyroid) the body needs to function (Porth, 2011).
The thyroid is one of the most essential glands in the body. It is located in the endocrine system, and sits right in the neck just above where the collar bones meet. The thyroid gland functions to produce hormones that control how every cell in the body utilizes energy, also known as a process called metabolism. When a person's thyroid abnormally produces an excessive amount of thyroid hormones, this is a condition referred to as hyperthyroidism. The causes of hyperthyroidism are known to include: eating too much food with iodine, graves disease, inflammation due to viral infections, tumors of the testes and ovaries, taking a large amount of thyroid hormone, receiving medical imaging tests consisting of contrast dye iodine, and growth of thyroid or pituitary gland (Board "Hyperthyroidism"). With an overactive thyroid, the body tends to speed up its functions. Symptoms vary from, fast heartbeats, rapid weight loss, abnormal sweating, nervousness, and mood changes. Hyperthyroidism is normally diagnosed through a series of lab tests. If not properly taken care of, condition may worsen leading to bone and heart problems in the long run. As far as treatment is concerned, options may vary from person to person depending on age and the level of activity of the thyroid. Treatments include antithyroid medicines, radioactive iodine ablation, and the last resort, surgery. Though all treatment plans work, radioactive iodine ablation is a permanent and more reliable remedy for an overactive thyroid. Radioactive iodine ablation is in fact the most commonly used cure for people with hyperthyroidism problems in the US today. “The treatment has been around since 1942 and has been extensively used since the 1950's” ("Radioactive Iodine Treatment o...
The thyroid gland plays a major role in the endocrine, thyroxine, triiodothyronine and metabolism system. The gland can be found in the front of the neck and above where the collar bones meet. The thyroid gland controls the body by releasing T4 and T3 hormones. Controlling metabolism plays an important role when regulating mood, weight,
The thyroid gland is found in the front of the neck and produces two main hormones. The hormones are called thuroxine (T4) and Triiodothyronine (T3). Together these hormones regulate the body’s metabolism by increasing energy use in cells, regulate growth and development, help to maintain body temperature and aid in oxygen consumption. These two hormones are regulated by hormones produced by the hypothalamus and pituitary gland. The hypothalamus senses changes in body’s metabolic rate and releases a hormone known as thyropin-releasing hormone (TRH). This hormone then flows through connecting vessels to the pituitary gland which signals it to release another hormone. This hormone is known as thyroid-stimulating hormone (TSH). TSH then makes its way to the bloodstream until it reaches the thyroid where it is then signaled to activate T3 and T4 production [1]. This mechanism is controlled by a negative feedback loop meaning that when there is a sufficient amount of thyroid hormones in the blood stream, this will signal back to stop production of thyroid stimulating hormones. Complications occur when the thyroid hormones keep increasing even though there is already a sufficient amount of T3 and T4 in the blood stream. This process of over expression of thryroid hormones is known as hyperthyroidism. Hyperthyroidism is a general term that includes any disease that has a consequence of an overabundance of thyroid hormones. Hyperthyroidism is a general term but there are many variant diseases that are in the hyperthyroidism category. These diseases include diffuse toxic goiter, Basedow’s disease, thyrotoxicosis, Parry’s and Graves’ disease.
The thyroid is a small gland at the base of the neck. The thyroid is shaped like a butterfly. It releases hormones that deliver energy to the cells of the body (Shomon). The thyroid releases two hormones called T3 (triiodothyronine) and T4 (thyroxine). The hormones control rates in the body such as, how fast the heart beats and how fast calories are burned. These activities make up the metabolism (“Publications”).
According to the National Cancer Institute, cancer health disparities are defined as the adverse differences between specific populations and the achievement of an optimal state of health. These population groups are categorized by geographic location, income, disability, age, education, gender, sexual orientation, ethnicity, or race. These factors correlate with cancer mortality rates that impact specific population groups in the United States, cancer prevalence is the number of people diagnosed or living with cancer, and cancer incidence which is the number of new cancer cases in a population. According to the American Cancer Society, in 2013, there were an estimated 1,660,290 new cases of cancer and 580,350 of the new cases resulted in mortality. Individuals who have limited access to healthcare, health illiterate, and poverty stricken are more likely to develop cancer. This means a person’s socioeconomic status can determine the likelihood of their probability of developing cancer
The thyroid gland is part of the endocrine system, and it is controlled by the pituitary which is known as the “master gland” of the endocrine system. The pituitary controls the thyroid by producing Thyroid Stimulating Hormone (TSH) which stimulates the production of thyroid hormones. . The thyroid gland secretes two main hormones: Thyroxine (T4) and Tri-Iodothyronine (T3). These hormones increase metabolic rate, heat production, oxygen consumption, appetite, growth hormone secretion, alertness and quicker reflexes. The thyroid gland is located in the anterior portion of the neck, beneath the Adam’s apple. It is divided in two lobes on either side of the windpipe: right lobe and left lobe. These lobes create what looks like a butterfly shape. The gland is essential to the contribution of maintaining the homeostasis of the body. It plays a role in monitoring the body’s expenditure of energy and running the body’s metabolism.
The male reproductive system is a set of organs that works together to produce sperm which will later in life fertilize females eggs. The testes are the most important part of the system because it produces sperm cells. It is similar and looks similar to ovaries of a female’s reproductive system because it also holds what they need to reproduce. Its job is to produce the sperm cells needed to reproduce. Due to hormonal imbalances the production of sperm cells may not even be possible in some males. Testosterone is the male the hormone that gives men there manly characteristics. It is made up of hydrogen, carbon, and oxygen with a white color. In the male body it helps develop sex organs, a deeper voice, and facial hair (Khalid, 2013). Cancer or a genetic disorder in males is the most common thing that cause the reductions of testosterone production in the body. Behind the testes is the epididymis which lets sperm go through the vas deferens from the testes (Dictionary, 2014). It looks like leach the way it is position right on the testes but it is thinner. When sperm is produces the ...
...culatory system. Pituitary gland is a growth hormone that helps in mertabolism and develops reproductive organs. The thyroid controls metabolsim on the rate that the body breaks down food. Adrenal gland secretes many hormones including adrenaline which prepares the body to react in a stressful situation. The pancreas produces digestive enzymes and insulin. Ovaries produce ova and estrogen. Testes produce sperm cells and testosterone. To stay healthy you should get a regular medical check-up, eat a well-balanced diet, sleep at least 8 hours, and decrease stress in your life. Some problems are growth disorders, diabetes, and obesity. Puberty begins at different times for girls then boys. Girls start around ages 9-13 and boys are ages 10-15.