liquid portion of the blood and lymph containing water, protiens, salts, nutrients, hormones, vitamines and cellular components (leukocytes, erythcytes, and plateletes)
serum
liquid portion of the blood left after the clotting process
erthrocyte
red blood cell that transports oxigen and carbon dioxide within the blood stream
hemoglobin
protein-iron compound containes in erthrocyte that has bonding capabiloties for the transport of oxegen and carbon dioxideleukocyte