The blood from these arteries feeds the organs and systems (cells & tissues). Once the blood has given up all its oxygen it makes its way back through the heart, through the veins. Blood from the lower part of the body enters the heart through the inferior vena cava. Blood from the top of the body enters the heart through the superior vena cava. Blood only flows in one direction through the heart; the two values (bicuspid & tricuspid) ensure that this happens.
The serous membrane secretes serous fluid into the space between the visceral and parietal layers that allows smooth movement between the layers, when the heart beats. The Myocardium: The myocardium is the middle layer of the heart and is composed of specialised muscle tissue called as the cardiac muscle, on which the circulation of blood depends. It varies in thickness, being thickest in the left ventricle, thinner in the right ventricle and thinnest in the artrium. The Endocardium: The endocardium forms the inner linging of the heart is a thin, smooth, glistening membrane consisting of flattened epithelial cells which is continuous with the valves and with the lining of the blood
“The medulla is further divided into numerous sections called the medullary pyramids.”This region is known as the pelvis of the kidney. The medullary pyramids have urine dripping into the pelvis. The branches of the emerging arterioles of the renal artery usually go along the border found between the medulla and cortex. The smaller branches given off at right angles provided million or more of nephrons into the cortex of the kidney. Structure and function of nephrons/kidney tubules “Nephron is the basic structural and functional unit of the kidney.” The nephron consists of a tubule closed at one end, the other and opening into a collecting tubule.
It's also found in the uterus and fallopian tubes. The movement of cilia move the ovum to the uterus. Glandular Epithelium are basically columnar epithelium with goblet cells. Some parts consist of such a large number of goblet cells that there are only a few normal epithelial cells left. They secrete substances
It is located on the left side of the body just above the kidney. Humans can’t live without the spleen. The thymus: This stores immature lymphocytes and prepares them to become active T cells. The thymus produces vital white blood cells and is located in the chest just above the heart. Tonsils: Tonsils are large clusters of lymphatic cells that are found in the pharynx.
In patients with Hydrocephalus, the cerebral cortex is much thinner than normal. This is caused when an excess of CSF causes the ventricles to become abnormally large which in turn puts a large amount of pressure on the cerebral cortex and causes it to become compressed. The abnormal accumulation of CSF can occur if the choroid plexus over produces CSF or if any of the ventricles or arachnoid villi in the brain become blocked interfering with the re absorption of CSF. Hydrocephalus causes the appearance of the head to look enlarged and is sometimes known as water on the brain. The amount of excess CSF varies from patient to patient and it seems that the more excess fluid that there is in the brain then the greater the degree of disability for the patient.
About one centimeter from the celiac axis, you find the SMA which supplies the small intestine, cecum and parts of the colon. There are anatomical variations where there can be a common trunk of the celiac artery and SMA. The renal arteries which are right below the SMA, supply blood to the kidneys, supra renal glands and the ureters. Multiple renal arteries are not uncommon bilaterally. The IMA arises from the abdominal
Assignment by Lliam Hunt Liver cancer can be defined as a Liver cancer can be caused by chronic alcohol consumption and is the most common association to liver cancer in the world. An autopsy showed half of alcoholics, previously unsuspected to have cancer, have early evidence of cancer hidden within the liver. This life style choice of large and continuous consumption of alcohol is a factor of why liver cancer develops in. The usual setting is an individual with alcoholic cirrhosis who has stopped drinking for 10 years and then develops liver cancer. It is somewhat unusual for an actively drinking alcoholic to develop liver cancer.
Liver Introduction There are many organs that help our body function properly, one particular organ that plays an important role is the liver. According to Dorland’s Illustrated Medical Dictionary, liver is defined as a large gland of a dark red color found in the upper part of the abdomen on the right side. Its domed upper surface fits closely against and is adherent to the inferior surface of the right diaphragmatic dome, has a double blood supply and from the hepatic lobes, left lobe, right lobe, caudate lobe and quadrate lobe (Dorland 1082). Liver is divided into three different regions, left liver (pars hepatis sinistra), right liver (pars hepatis dextra) and posterior liver (pars posterior hepatis), the latter being identical to the caudate lobe. Liver is made up of thousands of minute lobules, which are functional units of the liver.
DIPG: The Silent Killer By: Natasha Mitchell University of Phoenix In Memory of Jose Miguel Toledo Natasha Mitchell COM/156 March 23, 2015 Week 9 DIPG: The Silent Killer Cancer was the second leading cause in children’s death in the year 2007. Over 1300 children from the ages of one years old to fourteen years old died from cancer. Children today have so much more to look forward to such as graduation, proms, going off to college but this disease is hitting them at very young ages sometimes causing there future to be unseen. You see today’s children have more serious issues that they have to face when it comes down to sicknesses and diseases. Cancer is one of them.