Chapter 21 of Writing Today Using Basic Rhetorical Patterns Introduction Definition Classification Comparison and Contrast Rhetorical patterns are useful for writers to arrange ideas into sections and paragraphs (425).
Bone marrow stromal cells. A general term for non-blood cells in the bone marrow, such as fibroblasts, adipocytes (fat cells) and bone- and cartilage-forming cells that provide support for blood cells.
White Blood Cells. White blood cells (WBCs, also called leukocytes) are a key part of the body's system for defending itself against infection (this system is called the immune system). They can move in and out of the bloodstream to reach affected tissues.