Tarea

Lymphatic system


Lymphedema: One of the most prevalent lymphatic disorder is lymphatic insufficiency, or lymphedema which occurs due to an accumulation of lymphatic fluid in the interstitialtissue. This results in swelling in the arms, legs and sometimes in other parts of the body. The severity of this disorder varies from extremely mild complications to a disfiguring, painful and celluliteinfections deep in skin. If not treated, the skin eventually becomes fibrotic (thickening of the skin and subcutaneous tissues) with loss of normal structure, functionality and mobility. The twotypes of lymphedema are:
• Primary Lymphedema: It is an inherited condition that occurs due to impaired or missing lymphatic vessels. It affects from one to as many as four limbs and even other bodyparts, including internal organs. It can exhibit at birth, develop with the onset of puberty or occur in adulthood, with no apparent causes.
• Secondary Lymphedema: The disorder is basicallyacquired regional lymphatic insufficiency which occurs due to any trauma, infection or surgery that disrupts the lymphatic vessels or results in the loss of lymph nodes. More on lymphedema treatment.Respiratory system

Cancer of the lung, like all cancers, results from an abnormality in the body's basic unit of life, the cell. Normally, the body maintains a system of checks and balances on cellgrowth so that cells divide to produce new cells only when new cells are needed. Disruption of this system of checks and balances on cell growth results in an uncontrolled division and proliferationof cells that eventually forms a mass known as a tumor.
Tumors can be benign or malignant; when we speak of "cancer," we are referring to those tumors that are malignant. Benign tumors usually can beremoved and do not spread to other parts of the body. Malignant tumors, on the other hand, grow aggressively and invade other tissues of the body, allowing entry of tumor cells into the bloodstream...