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 exact cause of hypothalamic tumors is not known. It is
likely that they result from a combination of genetic and
environmental factors. In children, most hypothalamic tumors
are gliomas. Gliomas are a common type of brain tumor that
results from the abnormal growth of glial cells, which are a
type of cells that support nerve cells. Gliomas can occur at
any age but they are often more aggressive in adults than
children. In adults, tumors in the hypothalamus are more likely
to be metastatic (resulting form the spread of cancer form
another organ to the hypothalamus) than they are when they occur
in children.
Peter Heage, of Colorado, was diagnosed with a hypothalamic
brain tumor. He said that he was having headaches too often,
and they were different from most headaches he had in the past.
He would forget things, and then forget more often. He said he
had a vague feeling that something just wasn’t right. One day
he had a seizure while he was at work. After seeing his
physician, he told him that he had some of the common symptoms
of a brain tumor.
Brain tumors have a variety of symptoms ranging from
headache to stroke. Seizures may be the initial manifestation
of a brain tumor, and eventually as many as 30% of patients with
brain tumors will develop seizures. Gradual loss of movement or
sensation in an arm or leg may occur. Unsteadiness or
imbalance, and double vision may occur, especially if it is
associated with headache. Loss of vision in one or both eyes
Glioblastomas (GBM) are tumors that arise from the supportive tissues of the brain. These supportive tissues are composed of astrocytes, star-shaped glial cells that play a very important role in neural functioning. Glioblastomas are highly malignant because astrocytes reproduce quickly and are supported by a large network of blood vessels. Although they are generally found in the cerebral hemispheres of the brain, glioblastomas can be found anywhere in the brain or spinal cord. The tumors come from normal brain cells, so it is easy for them to invade and live within normal brain tissue. However, glioblastoma rarely spreads elsewhere in the body. (1)
Great Britain in 1764 enacted a series of measures aimed at raising revenue from its 13 American colonies. Many of those measures, including the stamp act, townshend acts and sugar act, generated fierce resentment among the colonist, when protested against “taxation without representation”. In 1770 boston massacre and the 1773 Boston tea party were one of the most important points of resistance, and in june 1774 the king closed down the city harbor until the citizens paid for the
Researchers have found a way to connect sleep with education. Gary Scarpello who wrote "Lack Of Sleep Could Be Trouble For CTE Students” , did a research study with liberty mutual showed that teens had an average of 7.2 hours of sleep on school nights and 33 to 75 % of all students have sleep problems. In the article it had stated that not getting enough sleep can cause impaired hand eyed coordination, reaction time and brief mental lapses. (Scarpello). The same researchers also found out that Sleep helps restores brain functions such as alertness, metabolism, and memory and regulate hormones (Scarpello). Researchers Mary A. Carskardon and A.R. Wolfson studied 3,120 Rhode Island children. They had figured out that college students who slept more than nine hours a night had a gr...
The Revolutionary War both the British and the American colonists had many difficulties to face. The Americans were at a disadvantage due to their lack of experienced soldiers and supplies. The British badly put down the greatness of the North American continent . In order for the Americans to accomplish in winning the war, they had to train their militias and learn military tactics to best attack the British. In order for british to have won they should have taken the colonists more seriously and better planned their military tactics. For the Americans and the British there were challenges to be taken and their decisions on how to affect them basically decided the end of the war.
Many signs include a "white pupil," also known as leukocoria. Retinoblastoma can occur in either one or two eyes (Paul T. Finger, Pg. 1). This abnormal white pupillary reflex is sometimes referred to as a cat's eye reflex. Another sign of retinoblastoma is a crossed eye (Ambramson, Ch3). Leukocoria doesn't always end up as being retinoblastoma, it can even result in: congenital cataract, Toxocara canis, Coat's disease, and persistent hypertrophic primary vitreous (PHPV) (Finger, Pg.2). Retinoblastoma occurs when there's a mutation or deletion of the q14 band of chromosome 13 (Finger, Pg. 1). Symptoms can be painful if not treated quickly. Some include a red, painful eye, swelling of the surrounding eye, poor vision, dilated pupil, even extra fingers or toes, and retardation (Ambramson, Ch3).
...works together to break down the molecules. As for the experiment, since my subject was about the human body, I had fewer possibilities to check it out myself. However, I think that I may be possible if I were to test the acid HCl on different components such as food and bacteria to see if my results are similar to what I researched through internet and books with my own eyes.
Amblyopia is a condition in which visual acuity in one eye is greatly reduced. It is caused by lack of stimulation or disuse during visual development (Rose, 1998). Because the eye is not fully developed at birth (Jarvis, 1992, as cited in Rose, 1998), infants need stimulation to complete the visual neural pathway. When one or both eyes are inhibited, for example due to misalignment of one eye (strabismus) or a large difference in refractive power between two eyes (anisometropia), the neural pathway for the inhibited eye develops abnormally, or does not develop at all. At approximately six years of age eye development is complete (Stager, 1990, as cited in Rose, 1998). Before visual development is complete amblyopia can be treated. If it is caught and treated at an early age, normal vision can be preserved (Rose, 1998).
Tumors and growths of all kinds can form in the thyroid gland. Thyroid tumors are usually benign, which is not cancerous; but doesn’t mean that they can’t be malignant, which are cancerous and spread quickly into nearby tissues and other glandular areas of the body. Thyroid cancer can happen to anyone at any age. According to the Essentials of Human Diseases and Conditions textbook; “The four main types of thyroid cancer are papillary (small nipple-like projections), follicular (saclike balls of cells), medullary (affecting the interior portion of the gland, and anaplastic (loss of differentiations of cells).” (Schell Frazier & Drzymkowski Wist, 2013)
Sleep is crucial to lead a very happy and healthy life. Without sleep, people can become less focused and are constantly tired during waking life. “Sufficient sleep is increasingly being recognized as an essential aspect of chronic disease prevention and health promotion” (Are You Getting Enough Sleep?). To fight threatening diseases and to maintain a healthy lifestyle, a good night’s sleep is number one on the to-do list. However, most people think they have more important things to do other than lie down and rest, but sleep is essential to a healthy life. Putting down a distraction and going to bed is quite difficult to do, but people need a good quality and quantity amount of sleep each night. “Sleep affects mentality, creativity, physical vitality, and healthy weight. It is also not just the quantity of sleep you get, but the quality of sleep you really have to pay attention to. ” A large amount of people try to sleep as little as possible. There are too many factors at play that people would rather be doing, but sleep is just as important for happiness and good health as exercise and nutrition are (How Much Sleep Do You Need?). Lack of sleep causes mental and physica...
Brain metastases or BM is a type of brain tumor that can be caused from different types of cancers that are in the body before or after treatment. Around 20-40% of cancer patients and 30-40% of people with regular Metastases can get BM therefore, it affects a lot of people. BM is usually not a huge tumor, it is mostly never longer than four centimeters in diameter for big lesions and no more than three centimeters in smaller lesions (Andrews, D. W.& Scott, C. B. 2005). Doctors can diagnose BM using symptoms and effects, it is also related to cancer, but it does have treatments in which different surgeons use different methods.
In June of 2012, I began to notice a decline in my vision. At the time my medical insurance was through Santa Clara Valley Medical Center’s Valley Care. Although I brought my vision loss to my doctor’s attention, I was only given eye drops and diagnosed as unspecified visual loss*. As my vision got worse, it became increasingly harder to read textbooks and impacted my mobility.
Power has been defined as the psychological relations over another to get them to do what you want them to do. We are exposed to forms of power from the time of birth. Our parents exercise power over us to behave in a way they deem appropriate. In school, teachers use their power to help us learn. When we enter the work world the power of our boss motivates us to perform and desire to move up the corporate ladder so that we too can intimidate someone with power one day. In Joseph Conrad’s Heart of Darkness Kurtz had a power over the jungle and its people that was inexplicable.
Robert, a 65 year-old male, has trouble reading fine detail, especially out of his central vision. He complains that his vision is blurred and that it is harder to see while operating a motor vehicle. In addition, sometimes objects appear wavy or crooked, which impairs his vision. His worst symptoms were that he occasionally lost the ability to distinguish between the features of familiar faces and he had a localized blind spot. Robert is not alone; many people suffer from symptoms related to loss and distortion of the visual field. He suffers from macular degeneration, the leading cause of decreased vision loss in the United States, especially for people over the age of 50 (Philippi, 2000).
How does one see the symptoms for childhood cancer? First one must know that there are many different types. There are forty different types of children’s cancer, including: Leukemia, Lymphoma, Sarcomas, cancers of the nervous system, liver cancers, kidney cancer, and more. Out of these cancers, the two most common childhood cancers are Leukemia, and brain tumors. What is leukemia? It is a cancer in which the bone marrow and other organs that produce blood produce and increased amount of immature or abnormal white blood cells. The symptoms of leukemia are paleness, excessive bruising, pain in the joints, and fatigue. Brain tumors are formed when a massive amount of cells are produced on the brain. The symptoms for this are frequent headaches, vomiting, seizures, decreased coordination, weakness, and problems concerning vision.
The images formed on the two retinas are so unlike that they cannot be blended in the brain. Thus, a double image is perceived. The condition is known as diplopia, or double vision. Prismatic lenses are prescribed to correct this defect.Imperfections in the cones of the retina, resulting from heredity or disease, cause defective color vision. This is known as color blindness, or Daltonism. In total color blindness, everything appears in shades of gray.