abeka health 9 section 6.1

the study of the immune system (system that protects the body from foreign invaders)

system that protects the body from foreign invaders

any organism (bacteria, fungi, virus, etc.) that can cause a disease

the most important part of the immune system

WBC that attack and dispose of pathogens

fight infected cells; secrete germ-fighting antibodies in the bloodstream

a chemical “alarm” issued when a pathogen invades the body; causes inflammation of nearby tissue

protein molecules that travel to the bloodstream

can fight pathogens by inactivating them or marking them for destruction

the chambers of the body that transport the white blood cells throughout the body

a liquid that helps maintain water content throughout the body

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excess fluid will pass through small tubes called ________ _____________

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once tissue fluid enters the capillaries, it's called _________

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pathogens in the body are picked up and carried by ________

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body movement forces lymph to move throughout the body in lymph __________ and lymph _______

small organs scattered throughout the lymphatic system; “bases” for WBC

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pathogens are cleansed from lymph when it passes through the _______

lymph tissue in the throat

lymph tissue in the intestines

largest lymph organ of the body

high body temperature that prevents pathogens from multiplying and speeds up white blood cells

produces WBC

filters toxins from the body; can fail due to alcohol consumption

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unbroken ________ prevents the majority of pathogens from entering the body