Which tissue is a form of liquid connective tissue?

• A. Skeletal muscle tissue
• B. Cardiac muscle tissue
• C. Smooth muscle tissue
• D. Blood and lymph

Answer: (D)

Liquid connective tissue has a fluid extracellular matrix that allows cells to move and circulate. Blood fits this because its matrix is plasma, a watery solution in which red blood cells, white blood cells, and platelets are suspended. Lymph is another example; it’s essentially interstitial fluid that has entered the lymphatic system and remains a circulating, protein-containing fluid. This fluid matrix is what gives these tissues their transport and immune roles throughout the body.

In contrast, muscle tissues are contractile tissues with organized filaments and relatively little fluid matrix, specialized for shortening and generating force rather than circulating fluids. So the tissue form that is liquid connective tissue is blood and lymph.