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Immune System and Integumentary System

Clues
Across
tissues in the spleen.
a blood cell that fights disease. Also called leukocytes.
colorless fluid that contains white blood cells.
a network of vein like vessels that returns the fluid that leaks out of blood vessels to the bloodstream. Closely related to the immune system; helps fight viruses, germs, and diseases.
Provides insulation against the cold and protects openings from dust and disease.
Acts as a barrier and regulates what enters/leaves the body. Also one of the organs of the Excretory System.
is an immune response which involves antibodies obtained from outside the body.
Down
To protect against injury to the fingers and toes.
involves your bodies direct response to an unknown pathogen.
System that acts as a barrier against the outside world
a small knob of tissue in the lymphatic system that filters lymph, trapping bacteria and other microorganisms that cause disease.
an abdominal organ involved in the production and removal of blood cells in most vertebrates and forming part of the immune system.
They are found in the blood or other body fluids of vertebrates. Major component of the Immune System.
a lymphoid organ situated in the neck of vertebrates that produces T cells for the immune system.
a bacterium, virus, or other microorganism that can cause disease
System that fights against disease
hunt down and destroy cells that are infected with germs or that have become cancerous.