Complex sentence: For example, we refer to humoral immunity or humoral regulation to mean substances like hormones and antibodies that are circulated throughout the body, or use the term "blood dyscrasia" to refer to any blood disease or abnormality.
Split into simpler sentences: For example, modern medicine refers to humoral immunity or humoral regulation when describing substances such as hormones and antibodies which are circulated throughout the body. It also uses the term "blood dyscrasia" to refer to any blood disease or abnormality.