1) A network of three parts
2) Lymph
3) Lymph nodes

Produces blood cells, destroys damaged blood cells, stores blood cells

In childhood, they may become infected, enlarged, and cause difficulty swallowing; Surgery done in extreme cases

Everywhere it's huge and picks up fluid that leaves the capillaries

lymphocytes and macrophages

Returns interstitial fluid and leaked plasma proteins back to the blood.

oval lymphatic tissues on each side of the pharynx that filter air to protect the body from bacterial invasion; also called palatine

enlargement of the lymph nodes, occurs when infection is present and body is attempting to fight off the infection

Circulatory

various disease and infections

is to return fluid from the tissues to the central circulation.

a system that protects the body from foreign substances and pathogenic organisms by producing the immune response

severe, sometimes fatal allergic reaction; Antigen-antibody reaction stimulates a massive secretion of histamine;

1. the contraction of skeletal muscles against lymphatic vessels
2. smooth muscle contraction
3. one way valves in lymph nodes preventing backflow
4.lymph nodes
AKA PASSIVE

localized or generalized

Formed by the union of the largest collection ducts.

an organism that produces disease in a host organism disease being alteration of one or more metabolic functions in response to the presence of the organism

Most severe type of HIV infection; Subject to OPPORTUNISTIC INFECTIONS - a healthy person would fight off these infections, but a person with AIDS has a compromised immune response

large numbers of pathogens get trapped there and cause pain

pick up extra tissue fluid, return proteins to blood, carry digested fats, and role in body defense mechanisms (lymph nodes)

arises from the cisterna chyli and drains the rest of the body.

build-up of fluid in soft body tissues when the lymph system is damaged or blocked.

swelling in the lymph glands

it gets smaller and less active

Lymph vessels have so many valves to prevent the backflow of lymph and make sure it flows in one direction.