Lymphatic System

Lymphatic Vessels

Transport escaped fluids back to the blood

Lymphatic Capillaries

recollects fluid that the blood capillaries have left behind, tries to return fluid to the vena cava

Lymph

fluid of capillary system

Right Lymphatic Duct

right arm and chest

Thoracic Duct

every other part of the body

Venous system

empties into subclavian vein and internal jugular junction

Lymphatic System

a series of tubes through the body that drains tissues out of the body

Lymph Nodes

filter any pathogens

Lymph Capillaries

has definitive end, forces fluids out to let fluid in, but theres no filter

Lacteals

responsible for absorbing lipids from food

Lymphangitis

inflamed lymphatic vessels, lymph(infected) running through vessels, visible through skin, red streaks

Lymphedema

swelling due to lymphatic vessels being blocked

Lymphocytes

B cells and T cells (white blood cells)

Macrophages

phagocytize foreign substances and debris

Dendritic Cells

phagocytes that grab pathogens

Reticular Cells

create filter structures as lymph moves through the system(supports other cells)

Diffuse Lymphatic Tissue

loaded with lymphoid cells, embed parts of our immune system into organs

Lymphoid Follicles

larger concentrated lymphatic tissue in areas constantly under attack

Lymph Nodes

loaded with cells of the immune system, 4 or more afferent vessels, 2 efferent vessels, moves lymph slowly, buying time for cells to recognize any foreign substances

Buboes

swollen lymph nodes, large number of bacteria and virus

Cancer

non-tender, painless, lymph nodes

Peyer's Patches

Prevent foreign substances from entering intestinal wall, ensures that things we dont want dont conquer our immune system, kills off bacteria in gut

Appendix

gut bacteria

Appendicitis

inflammation of the appendix, sprays bacteria over the abdominal cavity, resulting in sepsis

Spleen

largest lymph nodes, amazing ability to filter out lymphatic tissue and blood, major player in establishing blood supply, creates new blood cells as a fetus

Splenectomy

removal of spleen when hemorrhaging, kids can regenerate spleen

Thymus Gland

programs T cells

Tonsils

traps foreign pathogens

Elephantiasis

parasitic worms grow into bottom of foot, blocking off lymph nodes, resulting in edema

Hodgkin's Disease

lymphoma(cancer in lymphatic system), malignant B cells

Non-Hodgkin's Lymphoma

all lymphomas other than Hodgkin's lymphoma, tissue and young kids

Sentinel Node

first node closest to cancer(swollen and nonpainful)