Immune System Study GuideImmune System Study Guide

66thth Grade Grade

2 Types of Immunity2 Types of Immunity

Innate/Nonspecific immunityInnate/Nonspecific immunity

Adaptive/Specific ImmunityAdaptive/Specific Immunity

Innate/Nonspecific ImmunityInnate/Nonspecific Immunity

Skin, tears, mucous membranes, nose hair, Skin, tears, mucous membranes, nose hair, and cilia.and cilia.

Acts like a barrier against pathogensActs like a barrier against pathogens

Destroys pathogens on contactDestroys pathogens on contact

Traps pathogensTraps pathogens

Adaptive/Specific ImmunityAdaptive/Specific Immunity

Develops specifically tailored defensesDevelops specifically tailored defenses

Includes lymphocytes, lymph vessels, Includes lymphocytes, lymph vessels, lymph nodes, thymus gland, tonsils and lymph nodes, thymus gland, tonsils and spleenspleen

Lymph SystemLymph System

Carries fluid away Carries fluid away from body tissues to from body tissues to the circulatory system the circulatory system thus helping to thus helping to maintain fluid balance.maintain fluid balance.

Filters blood and Filters blood and lymph so pathogens lymph so pathogens are removed from the are removed from the body.body.

Types of LymphocytesTypes of Lymphocytes

Killer T cellsKiller T cells

Helper T cellsHelper T cells

B cellsB cells

NeutrophilsNeutrophils

MacrophagesMacrophages

AntibodiesAntibodies

Killer T CellsKiller T Cells

Helper T CellsHelper T Cells

B CellsB Cells