lymph + onocology Flashcards
Functions of lymphatic system
drain excess interstitial fluid
absorption and transportation of dietary lipids
produce lymphocytes - immune response
filter pathogens
2 ducts lymph is drained by
right lymphatic duct
thoracic duct
where does right lymphatic duct drain lymph from
right side of head and neck
right arm
right side of thorax
what is right thoracic duct formed by
right subclavian trunk (upper limb)
right bronchomediastinal trunk (thoracic wall, lung and heart)
right jugular trunk (head and neck)
where does the thoracic duct drain lymph from
from rest of body
LHS of thorax and lower extremities
what is thoracic duct formed by
lymphatic trunks
where does thoracic duct commence
T12 above cisterna chyli
location of thoracic duct
runs upwards on RHS of descending aorta
posterior to oesophagus
how long is thoracic duct
38-45cms
where does thoracic duct end
in right atrium
Cisterna chill length
5-7cms
cisterna chyli location
inferior to thoracic duct
anterior surface of L2
cisterna chyli function
drain lymph from abdomen / pelvis / lower limbs
flow of lymph
highest to lowest pressure
blood capillaries
interstitial fluid
lymph capillaries
lymph veins and lymph nodes
lymph ducts
junction of jugular and subclavian veins
2 pumps that aid flow of lymph
skeletal muscle pump
respiratory pump
skeletal muscle pump - defn
milking action
contractions compress lymphatic vessel forcing lymph toward junction of jugular and subclavian veins