where are red calls, white cells and platelets made
the marrow of the bones
what do red cells do/contain
contains hemoglobin that enables the calls to pick up and deliver oxygen to all parts of the body
what do white cells do
bodys primary defense againts infections
types of leukocytes (white cells)
neutrophils, lymphocytes, monocytes, eosinophils, and basophils
what do platelets do
form clusters to plug small holes in blood vessels and assist in the clotting process
what is plasma
pale yellow mixture of water, proteins, and salts. acts as a carrier for blood cells, nutrients, enzymes, and hormones