Blood is a type of

Blood is classified as a specialized fluid connective tissue [1]. In the human body, there are four primary tissue types: epithelial, muscular, nervous, and connective [2]. Connective tissues generally function to support, bind, or connect other tissues and organs [1]. Blood fits this category because it consists of living cells—erythrocytes, leukocytes, and platelets—suspended in a non-living fluid extracellular matrix called plasma [1]. Unlike other connective tissues that have a fibrous matrix, blood is unique due to its liquid state, which allows it to circulate through the cardiovascular system. It serves a vital transport role, carrying oxygen, nutrients, hormones, and waste products throughout the body, thereby functionally connecting different organ systems [1]. This fluid nature and its origin from the mesoderm further solidify its classification as a specialized connective tissue [1][2].

Sources

1. [1] Science , class X (NCERT 2025 ed.) > Chapter 5: Life Processes > Activity 5.7 > p. 91
2. [2] https://www.ncbi.nlm.nih.gov/books/NBK538534/