Tissue samples are obtained from various sources, each with specific purposes and methods of collection. Common sources include:
Biopsies: Small sections of tissue are removed from a living organism. Biopsies can be performed on various organs like the liver, kidney, skin, and lungs. Surgical Specimens: Larger tissue samples obtained during surgeries. These specimens are often used to diagnose or confirm the presence of disease. Autopsies: Post-mortem examinations provide tissue samples from deceased individuals. These are invaluable for understanding disease processes and causes of death. Animal Models: Laboratory animals are used to study human diseases, and tissue samples from these models can offer insights into disease mechanisms and potential treatments. Cell Cultures: While not tissue in the traditional sense, cultured cells can provide valuable information about cellular behavior and pathology.
