Essays Tagged: "blood vessels"

Ambulatory Cancer Treatments

y functions. A malignant tumor, or cancer, is capable of invading surrounding structures, including blood vessels, the lymph system and nerves. It can also spread to distant sites by the blood and lym ... ays, magnetic resonance imaging, and ultrasound. Laboratory test, such as the Pap smear, and occult blood testing of the feces have also proven helpful for some of the cancers. However, concerns regar ...

(10 pages) 118 0 4.1 Mar/1997

Subjects: Humanities Essays > Health & Medicine

personal interest topic: hypertension

Hypertension or high blood pressure is defined as a repeatedly elevated blood pressure exceeding 140/90 mmHg (www.focuson ... This definition refers to a systolic pressure above 140 with a diastolic pressure above 90. Blood pressure is the pressure of the blood flowing through your blood vessels against the vessel wa ... essure of the blood flowing through your blood vessels against the vessel walls. It depends on your blood flow (how much blood is pumped by your heart) and the resistance of your blood vessels to bloo ...

(1 pages) 108 3 3.8 Dec/2002

Subjects: Social Science Essays

Biology-action of amylase enzyme on starch

orbed through the wall of the intestine. The small soluble molecules pass through the wall into the blood vessels surrounding the intestine. The blood vessels around the intestine are the starting poi ...

(3 pages) 75 0 3.0 Dec/2002

Subjects: Science Essays > Biology

Inter-Organismal Transport System in Humans

are also essential to the entire process. The system in humans combines the purposes of the heart, blood, and blood vessels to transport oxygen and nutrients. It has extremely numerous functions, inc ... l processes that occur in the circulatory system. One, Systemic circulation, every major organ with blood, and the other, Pulmonary circulation, carries blood between the heart and lungs.Systemic circ ...

(6 pages) 65 0 5.0 Feb/2003

Subjects: Science Essays > Biology > Human Biology

This essay was a short paper written about migraines for my biology class.

from this medical disorder and can be very painful.A migraine was once believed to originate in the blood vessels, till recent studies have shown that they are caused by the narrowing of blood vessels ... help is that of the over the counter drugs. Those such as Imitrex help greatly by constricting the blood vessels and decreasing blood flow to certain areas. Another medication which was released at a ...

(3 pages) 110 2 3.8 Feb/2003

Subjects: Science Essays > Biology > Human Biology

Sickle Cell Anemia

Sickle cell anemia is an inherited blood disorder, characterized primarily by chronic anemia and periodic episodes of pain. The cause o ... their oxygen, some will cluster together. This forms long, rod-like structures which cause the red blood cells to stiffen and assume a sickle shape. With the deformity, the cells cannot squeeze throu ... y, the cells cannot squeeze through the blood vessels, depriving organs and tissues of oxygenNormal blood cells live for about one hundred twenty day in the blood, while the defective sickled cells li ...

(5 pages) 108 0 4.8 Mar/2003

Subjects: Humanities Essays > Health & Medicine > Diseases


tissues covering the brain, the attaching structures at the base of the brain, and the muscles and blood vessels around the scalp, face and neck. There are two types of headaches primary and secondar ... rovascular headaches are the second most common primary. They are caused by the interaction between blood vessel and nerve abnormalities. (Migraines and cluster headaches fall under this category.)Sec ...

(2 pages) 44 0 1.0 Mar/2003

Subjects: Humanities Essays > Health & Medicine > Diseases

The effects of Atheriosclerosis.

Atherosclerosis is a disease of the heart caused by fat deposits in the walls of blood vessels, mainly the arteries. Atherosclerosis can occur in any artery, but it usually occurs i ... es have become large enough to project into the artery, they break or crack. When this happens, the blood begins to clot over the plaque, obstructing the artery. A piece of the plaque may break off wh ... the artery. A piece of the plaque may break off while in a large artery, and be carried through the bloodstream to a smaller vessel. When this blockage occurs, it is called an embolism. This process, ...

(4 pages) 49 0 0.0 Apr/2003

Subjects: Humanities Essays > Health & Medicine > Drugs

Explaining Hypertension.

Hypertension is high blood pressure, It is a major health problem. In the United States about 50 million people age 6 and ... troke as well as many other health related complications.Hypertension occurs when arterioles, small blood vessels that branch of from the arteries, become constricted making it difficult for blood pre ... eries, become constricted making it difficult for blood pressure to pass through them. As a result, blood pressure rises causing your heart to work harder. Normal blood pressure would be 120/80. If bl ...

(5 pages) 241 0 5.0 Apr/2003

Subjects: Humanities Essays > Health & Medicine

Looks and disabilitys in businesses.

n to the muscle fiber. Paralysis may result from injury, poisoning, infection, hemorrhage, occluded blood vessels, or tumors. Occasionally paralysis is due to congenital deficiency in motor-nerve deve ...

(20 pages) 240 0 4.6 Oct/2003

Subjects: Businesss Research Papers

Disease States Involving Disturbances of Haemostasis. (Nursing Project)

olving Disturbances of Haemostasis.Normal Human Haemostatic MechanismsHaemostasis is the control of blood loss from the circulation, involving a number of separate events including coagulation.The pro ... ation.The process is as follows:1. Vasoconstriction (Vasospasm).When the initial injury occurs to a blood vessel, it constricts with enough intensity to close the vessel. It occurs as the result of 2 ...

(8 pages) 75 0 4.3 Feb/2004

Subjects: Humanities Essays > Health & Medicine > Diseases

Causes and symptoms of stomach ulcers. (Statistics and eating tips, ect.)

of inflammation. Ulcers and the additional inflammation they provoke may erode into the esophageal blood vessels and give rise to bleeding into the esophagus. Occasionally, the bleeding is severe and ... o bleeding into the esophagus. Occasionally, the bleeding is severe and may require transfusions of blood and endoscopic (a procedure in which a tube is inserted through the mouth into the esophagus) ...

(3 pages) 136 5 4.2 Feb/2004

Subjects: Humanities Essays > Health & Medicine > Diseases

Rheumatoid Arthritis

rounding tissues. RA typically affects the lining of joints, but it can affect the membranes lining blood vessels, heart, and lungs may also become inflamed. Joints and other affected areas become inf ... sease. The Latex test is used to diagnose RA. The test detects the rheumatoid factor present in the blood. The rheumatoid factor is an antibody produced in response to inflammation, and is most often ...

(2 pages) 77 0 4.0 Mar/2004

Subjects: Humanities Essays > Health & Medicine > Diseases

What is Hodgkins disease?

ight diseases and infection.The lymphatic system includes a network of thin tubes that branch, like blood vessels, into the tissues throughout the body. Lymphatic vessels carry lymph, a colorless, wat ... l ask about the patient's medical history and diagnose them by performing a thorough physical exam. Blood tests and x-rays of the chest, bones, liver, and spleen will also be done. Tissue from an enla ...

(5 pages) 52 0 4.0 Mar/2004

Subjects: Science Essays > Biology

The Effect of Aerobic Exercise Training on Memory: Can Increasing Aerobic Exercise Improve Long-term Memory in Healthy Young Adults?

ysical activity increases our cardiovascular fitness that increases cerebral oxygen consumption via blood vessels. Moss and Scholey (1996) demonstrated improvements in memory with increase in level of ... experimental group. Nevertheless, the deterioration of memory might due to the decrease of cerebral blood supply during aging in one-year time, as some studies reported by Moss et al. (1996) demonstra ...

(8 pages) 122 0 4.0 Mar/2004

Subjects: Humanities Essays > Health & Medicine > Sports

Prostate Cancer

the floor of the pelvic cavity. The prostate is nestled at the bottom of this cavity, surrounded by blood vessels, nerves, and connective tissue. All male animals have some type of a prostate gland; i ... stage, more localized, and potentially curable cancers (p. 5).@The prostate-specific antigen (PSA) blood has become increasingly used in the diagnosis of prostate cancer since 1987. The PSA was initi ...

(19 pages) 193 0 4.4 Mar/2004

Subjects: Science Essays > Biology

Respiratory System - Muscular system

the body and oxygen exhaled from the body. The oxygen is carried throughout all the body systems by blood through the blood vessels. The blood is then pumped by the heart. When a person is resting the ... essels. The blood is then pumped by the heart. When a person is resting the blood pumps 5 liters of blood, when the person is exercising the heart pumps 7 times the amount of blood.The amount of air y ...

(1 pages) 50 1 3.0 Apr/2004

Subjects: Science Essays > Earth Sciences

Circulation in Humans, the purpose of this essay is to describe the physical anatomy of the heart, and the way in which circulation works.

Human circulation has three elements, which are the heart, the blood vessels, and the blood. All together, this is known as the cardiovascular system. Blood, which ... s composed of fluid plasma, with erythrocytes, leukocytes, and platelets which circulate within the blood, and account for 40% of it. Blood Plasma is a complex solution of water made with metabolites ... , bicarbonate as well as small amounts of others which include copper, potassium, and zinc. Because blood plasma is 90 percent water, when it passed by the cells of the body, the blood would lose most ...

(3 pages) 92 2 3.3 May/2004

Subjects: Science Essays > Biology > Human Biology

Risk Assessment what about drug?

ucinations, delusions, and paranoia . What happens is that the persons heart rate increases and the blood vessels of the eye dilate which cause the red eyes. Also they would get a feeling of tightness ... inutes. The afterward affects are fatigue, depression, and confusion. Once the substance enters the bloodstream it raises the blood pressure, increase the body temperature, effects the heart, and dila ...

(3 pages) 35 0 1.7 Jun/2004

Subjects: Science Essays

Components of Health

just to know how much muscle to build.Cardiovascular fitness is the ability of the lungs, heart and blood vessels to deliver adequate amounts of oxygen and nutrients to the cells to meet the demands o ... n breathes, part of the oxygen contained in the air is taken up in the lungs and transported in the blood to the heart. Even though adequate amounts of muscular strength and flexibility are required, ...

(2 pages) 27 0 0.0 Jun/2004

Subjects: Science Essays > Physics