Lymphatic system

Lymphatic System

A network of organs, vessels, and tissues considered a component of the circulatory system, crucial for immunity and fluid balance.

Phagocytosis

The process by which certain cells (phagocytes) engulf and digest microbes.

Lymph

A transparent fluid containing white blood cells, proteins, minerals, fats, and cell debris that circulates within the lymphatic system.

Lymphatic Vessels

Thin-walled vessels that carry lymph from tissues back to the bloodstream.

Lymph Nodes

Small, bean-shaped structures along lymphatic vessels that filter lymph and activate immune responses.

Thymus

An organ located in the upper chest that develops T-cells crucial for the immune response.

Spleen

The largest lymphatic organ responsible for filtering blood and storing blood cells.

Mucosa-Associated Lymphoid Tissue (MALT)

Collections of lymphatic tissue that protect against pathogens in mucous membranes.

B-cells

Lymphocytes that produce antibodies to neutralize pathogens.

T-cells

Lymphocytes that attack infected cells or support the functions of other immune cells.

Bone Marrow

Soft tissue in the center of bones responsible for blood cell production.

Fluid Balance

The regulation of fluid levels in the body to prevent edema.

Immunity

The body’s ability to resist infection through the production and transport of white blood cells.

Fat Absorption

The process by which the lymphatic system absorbs fats and fat-soluble nutrients from the digestive system.

Pregnancy and the Lymphatic System

The lymphatic system adapts during pregnancy to support increased blood volume and modifications of the maternal immune system.

Collecting Vessels

Larger lymphatic vessels that transport lymph to lymphatic ducts.

Thoracic Duct

The main lymphatic duct in the body that drains lymph into the venous circulation.