TY - CHAP M1 - Book, Section TI - Blood A1 - Mescher, Anthony L. PY - 2018 T2 - Junqueira’s Basic Histology: Text and Atlas, 15e AB - Blood is a specialized connective tissue consisting of cells and fluid extracellular material called plasma. Propelled mainly by rhythmic contractions of the heart, about 5 L of blood in an average adult moves unidirectionally within the closed circulatory system. The so-called formed elements circulating in the plasma are erythrocytes (red blood cells), leukocytes (white blood cells [WBCs]), and platelets. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/18 UR - accessmedicine.mhmedical.com/content.aspx?aid=1160662248 ER -