APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -Blood is one of the connective tissues. As a connective tissue, it consists of cells and cell fragments (formed elements) suspended in an intercellular matrix (plasma). Blood is the only liquid tissue in the body that measures about 5 liters in the adult human and accounts for 8 percent of the body weight.

Detailed explanation-2: -Blood is considered a connective tissue for two basic reasons: (1) embryologically, it has the same origin (mesodermal) as do the other connective tissue types and (2) blood connects the body systems together bringing the needed oxygen, nutrients, hormones and other signaling molecules, and removing the wastes.

Detailed explanation-3: -Blood is classified as a tissue because it has cells embedded in a matrix.

Detailed explanation-4: -Blood is considered a connective tissue because it has a matrix. The cellular components of blood are red blood cells, also called erythrocytes, white blood cells also called leukocytes and platelets. The fluid portion of whole blood, its matrix, is commonly called plasma.