Oct 21, 2023 · This article discusses cancer cells. It explains how cancer cells develop and how they differ from normal cells. It also explains why the body does not recognize and destroy cancer cells as it does other "foreign" cells.

Cancer cells are cells that divide continually, forming solid tumors or flooding the blood or lymph with abnormal cells. [1] Cell division is a normal process used by the body for growth and repair. A parent cell divides to form two daughter cells, and these daughter cells are used to build new tissue or to replace cells that have died because ...

Mar 10, 2024 · Cancer cells are cells that undergo uncontrolled growth and division, resulting in the development of an abnormal tissue mass referred to as a tumor. Unlike normal cells, which follow a regulated life cycle involving growth, division, and programmed cell death, cancer cells evade these processes.

In simple terms, cancer is a group of more than 100 diseases that develop across time and involve the uncontrolled division of the body's cells. Although cancer can develop in virtually any of the body's tissues, and each type of cancer has its unique features, the basic processes that produce cancer are quite similar in all forms of the disease.

Most cancers fall into one of three main groups: carcinomas, sarcomas, and leukemias or lymphomas. Carcinomas, which include approximately 90% of human cancers, are malignancies of epithelial cells. Sarcomas, which are rare in humans, are solid tumors of connective tissues, such as muscle, bone, cartilage, and fibrous tissue.

A cancer cell is a cell that grows out of control. Unlike normal cells, cancer cells ignore signals to stop dividing, to specialize, or to die and be shed. Growing in an uncontrollable manner and unable to recognize its own natural boundary, the cancer cells may spread to areas of the body where they do not belong.

A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm. Within the cytoplasm lie intricate arrangements of fine fibers and hundreds or even thousands of miniscule but distinct structures called organelles.

This section provides detailed information about cell structure and function, four basic types of tissue in the human body, and the different types of membranes found in the body.

Morphological and functional characteristics of the malignant cell. Morphologically, the cancerous cell is characterized by a large nucleus, having an irregular size and shape, the nucleoli are prominent, the cytoplasm is scarce and intensely colored or, on the contrary, is pale.

Nov 11, 2024 · Cancer cells are cells that escape the body’s natural growth regulation systems, dividing uncontrollably to form masses known as tumors or, in some cases, infiltrating the blood or lymphatic system with abnormal cells.