W3 Lymphatics & Cranial nerves - ANAT3004

lymphatic system

returns excess tissue fluid back to the blood

lymph transport back to blood

interstitial fluid → lymphatic capillaries → lymphatic vessels → lymph nodes → lymphatic ducts → veins at root of neck → blood stream

lymphatic system movement

skeletal muscle contraction compressing lymphatic vessels, respiratory movements create pressure changes, smooth muscle contraction in large lymphatic veessels and one-way valves prevent backflow

excess fluid that remains in tissues

contains excess interstitial fluid, leaked plasma proteins, cellular debris and pathogens where lymphatic system collects it

lymph nodes

filter lymph, contain lymphocytes to recognise and respond to pathogens and macrophages to remove debris and pathogens

lymphatic vessels roles

fluid balance, immune transport and fat absorption