The Human Body Is A Complex System

There are many kinds of body systems, working together to create a functioning body. Different body systems work with certain body systems, but all work together. Like, nervous system and muscular system, circulatory system and respiratory system, and so on.

Ocular Melanoma: two other names for this is called Uveal Melanoma & Choroidal Melanoma. These are said to be the rarest forms of melanoma which can occur in the eyes.

The circulatory system and the respiratory system work closely together to ensure that organ tissues and systems receive enough oxygen. Oxygen is required for cellular functions such as cell respiration. This is so the body’s organs and cells can work at fully; it is done by releasing chemical energy with in stored foods. The air breathed in and held in the lungs is transferred to the blood. The blood is circulated by the heart, which pumps the oxygenated blood from the lungs to the body organs and returns with deoxygenated blood.

All the systems in the human body are vital to our survival and well-being. If you take away the functions of just one of these systems our whole body will cease to work properly. The main systems of the human body are the nervous, endocrine respiratory, circulatory, immune, digestive, excretory, skeletal, muscular, and the reproductive systems. They all work together in harmony and unison to keep us alive.

We break the body into the system because it's easy to memorise and understand. If we talk all in one about the body, there will be hard to understand and make us confuse. We wouldn't be able to recognise which body part was. It needs to discuss one system at one because they work for the same function. The body parts each depends on the others to be done their

One thing that we never want to hear a doctor say to us is that we have a tumor. Tumors are classified into two different classes, malignant or benign. Malignant are cancerous and are life threatening, while benign are not life threatening. Malignant tumors may spread to other parts of the body, while benign tumors stay in the place where they started. When the cells in a tumor are normal, it is benign. When the cells are abnormal and grow uncontrollably, they are cancerous cells. Looking at tumor cells through a microscope, cancer cells appear to have abnormal

Malignant melanoma is a type of skin cancer that develops in the melanocytes in basil layer of the epidermis. Melanocytes produce melanin and deposits them in the epidermis cells which gives you your skin color and helps protect your skin. Melanoma usually appears on your skin, but it can also be in your eyes, some of your internal organs and showing up as dark lines in your nails. When it appears in your eyes, internal

Cancer is the name given to a collection of more than 100 related diseases. It is a genetic disease caused by changes to genes that control the way our cells function (“What is Cancer?” National Cancer Institute). The genetic changes that subsidize cancer tend to affect three chief types of genes- proto-oncogenes, tumor suppressor genes, and DNA repair genes. These are the “drivers” of cancer. Cancer can appear and grow virtually anywhere in the body. Types of cancer are customarily named for the organs or tissues where they form. They can also be described by the types of cell that formed them. Although there are many different kinds of cancer, all cancers start because abnormal cells grow out of control (“What is Cancer?” American Cancer

The overall incidence of liver- dominant metastatic melanoma is low, particularly in comparison with that of other primary tumors, such as colon and breast cancer. However, ocular melanoma is the most common intraocular malignant tumor in adults.Due to its special biology, metastatic lesions most commonly develop most commonly in the

Retinoblastoma is a cancer on the retina of the eye. The retina is the inside layer of the eye that has the nerves needed for sight. This type of cancer can be found in one or both eyes. Multiple cancerous tumors can develop in one or both eyes. Retinoblastoma is a rare cancer and it is more common in children. If a child has retinoblastoma, he or she is often born with it. However, it is rarely diagnosed at birth. It is usually noticed when a photograph is taken of the face and the pupils look cloudy, silvery-white, or yellow. This is known as leukocoria orcat's eye reflex. If found early, retinoblastoma can be treated, the eye can be saved, and eyesight can be preserved.

Melanoma is not the most common form of skin cancer, but is the most serious. Melanoma arises when the pigment-producing cells called melanocytes mutate and become cancerous. Most pigment cells are found in the skin. Melanoma can also affect the eyes, and other parts of the

Cancer comes in many forms and can attack just about anyone. Some cancers take more time to grow, spread and show signs of attack, but it is very important for everyone to be very careful and cautious because anyone can be a victim for this cruel cancer. Retinoblastoma is one of the cancers that can become very fatal to someone’s vision if not treated. Retinoblastoma is caused when the cancer cells start to grow with no control. Cells can become cancer cells in any part of the body so it is very essential for it to be treated as soon as possible. It can also extend to any other parts of the body. Retinoblastoma is started in the retina of the eye and is most common in children.

A form of cancer that may often be overlooked when compared to more common cancers (such as lung, brain or skin) is eye cancer. The two most common forms of eye cancer are ocular melanoma and retinoblastoma. Retinoblastoma is very rare and occurs in approximately 3% of children. To better understand how these cancers affect the eye, one must have some idea of the eye parts and typical affected areas.

Tumors are one of the most feared diseases of our time. Many people upon hearing the word “tumor” immediately resonate to the conclusion of it being cancer, which is not necessarily true. Tumors fall into to two main types, benign and malignant. Although they are considerably different in tissue invasion, their nature that makes them distinct and symptoms, they are also quite similar in the way they recur in the same location, growth size and their health risks.

Retinoblastoma is a cancer that develops in the retina of the eye, predominantly in young children. It occurs due to the mutation in the Rb gene, leading to the production of a dysfunctional Rb protein that cannot bind to a transcriptional factor in order to prevent further progression in the cell cycle. Consequently, uncontrolled proliferation takes place which results in a cancer developing. Two forms of the disease exist; familial and sporadic. In the familial form, the individual inherits one mutated copy of the gene and the other copy mutates in early childhood leading to presentation of the disease. In the sporadic form, both copies of the gene are normal at birth, however, chance mutations occur in both copies of the gene in a retinal cell causing the tumour to arise. Retinoblastoma is usually detected by abnormalities of the eye such as leucakoria and deterioration of vision. Treatments involve enucleation, chemotherapy and radiation therapy.