Mesoderm

Term: MesodermDefinition: One of the three primary germ layers in the early embryo, which develops into connective tissue, muscle, bone, and the circulatory system.Phonetic Pronunciation: (MEE-zoh-durm)Origin: The term "mesoderm" is derived from the Greek words "mesos," meaning "middle," and "derma," meaning "skin" or "layer." This reflects the middle position of the mesoderm between the ectoderm and endoderm in embryonic development.Significance in Asbestos Context: Mesoderm is significant in the context of asbestos because it gives rise to the mesothelial cells that line the pleural and peritoneal cavities. Asbestos exposure can lead to the transformation of these cells into mesothelioma, a type of cancer directly linked to asbestos.Example Sentence: The development of mesothelioma from asbestos exposure involves the transformation of mesothelial cells, which originate from the embryonic mesoderm.Related Terms: Mesothelium, Ectoderm, Endoderm, Mesothelioma, Pleura.Notes: - Mesoderm is not directly affected by asbestos but is crucial for understanding the origin of affected cells. - The term is fundamental in embryology and essential for comprehending the pathology of asbestos-related diseases.