Blood and Immunity

Using your notes and handouts on blood and immunity, fill in the answers to the following clues.

An online crossword puzzle with 20 words. Play it free at AgileCrosswords.com.

Clues

• act as ports along cell membranes
• initiates red blood cell production
• antibody-producing white blood cells
• blood protein involved in blood clotting
• T cell that turns off your immune system
• white blood cell
• y-shaped
• liquid portion of blood
• reduction in blood oxygen due to low levels of hemoglobin
• produces antibodies
• seek out intruders, signal attacks
• red blood cells
• pigment found in red blood cells
• phagocytotic white blood cells
• allows erythrocytes to carry more oxygen
• initiate blood clotting process
• stimulates the formation of antibodies
• punctures cells infected with foreign invaders
• number of complement proteins in humans
• retain information about the geometry of antigens

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