Lymphatic System

Immune System

The cells of the lymphatic system that provide defense against disease and permanent immunity against future infections.

Innate Immunity

The first line of defense that includes physical barriers and immune cells like skin and mucous, which act quickly.

Adaptive Immunity

Immunity that involves memory cells (B & T Cells) that target specific infections and respond more slowly.

Inflammation

A complex biological response to tissue injury or infection characterized by redness, swelling, pain, heat, and joint immobility.

Cytokines

Proteins that signal an inflammatory response.

Lymphatic System

A collection of cells and biochemical cells that go through lymphatic vessels, creating a network circulating fluid and is crucial for the immune system.

Edema

The accumulation of excess fluid in the body’s tissues.

Antibody

Also known as immunoglobulin; reshapes itself to adapt to the antigen it targets.

IgG

IgG is the most abundant antibodies, protects against bacteria, viruses, and toxins, crosses the placenta.

Phagocytosis

The process by which macrophages and neutrophils engulf and digest pathogens.

Macrophages

A type of white blood cell that engulfs and digests bacteria and other foreign substances.

Neutrophils

Another type of white blood cell that plays a key role in the immune response through phagocytosis.

T Cells

A type of lymphocyte that matures in the thymus and is involved in the adaptive immune response.

B Cells

A type of lymphocyte that is responsible for producing antibodies and develops in the bone marrow.

Complement System

A part of the immune system that enhances the ability of antibodies and phagocytic cells to clear pathogens.

Hypersensitivity Reactions

Exaggerated immune responses to non-harmful antigens.

Passive Immunity

Immunity acquired without the body actively producing antibodies or immune cells.

Active Immunity

Immunity developed through the body's own immune response after exposure to a pathogen or vaccination.

MALT

Mucosa-Associated Lymphoid Tissue, helps with lymphatic processes.

T Helper Cells

A type of T cell that helps activate other immune cells.

Natural Killer Cells

A type of lymphocyte that plays a role in the innate immune response by inducing apoptosis in infected cells.

Lymphatic Pathways

Include lymphatic capillaries, vessels, nodes, trunks, and collecting ducts.