Blood components Blood is a fluid connective tissue composed of 55% plasma and 45% formed elements including WBCs, RBCs, and platelets. Since these living cells are suspended in plasma, blood is known as a fluid connective tissue

 Blood is made up of four main components: 

Plasma

Red blood cells

White blood cells

Platelets

Blood also contains: 

Cellular material, Water, Amino acids, Proteins, Carbohydrates, Lipids, Hormones, Vitamins, Electrolytes, Dissolved gasses, Cellular wastes. 

Blood cells are suspended in plasma. Red blood cells make up about 45% of whole blood by volume, plasma about 54.3%, and white blood cells about 0.7%. 

Microbe Notes

Blood has many functions, including: 

Transporting oxygen and nutrients to the lungs and tissues

Forming blood clots to prevent excess blood loss

Blood is a fluid connective tissue composed of 55% plasma and 45% formed elements including WBCs, RBCs, and platelets. Since these living cells are suspended in plasma, blood is known as a fluid connective tissue just not fluid