Oro-Lymphatics Flashcards
lymphatic system job
drain excess fluid, fight against infection
what is part of lymphatic system
lymph nodes, organs- spleen, bone marrow
capillaries leaky tap explain
leakage known as tissue fluid is excess and gets taken up by lymphatic vessels and becomes lymph, this is screen by lymph nodes and then taken to the large veins in the neck.
majority of lymph drained to..
thoracic duct, left venous angle, left subclavian vein, left internal jugular vein
rhs drained to
right lymphatic duct, then right venous angle,right subclavian vein, right internal jugular vein
if tissue fluid not taken up..
edema more seriously elephantiasis.
what is the first group called that receives lymph
regional lymph nodes
when lymph nodes fight infection they produce what
germinal centres
they also enlarge which can be very painful
2 groups of nodes
superficial ring and deep cervical
the superficial nodes 7
sub mental, sub mandibular, superficial cervical, parotid, buccal, occipital, mastoid
the 4 deep nodes
deeper- sub mental and sub mandibular
retropharyngeal, deep cervical nodes
5 tonsils
palatine, tubal, pharyngeal, lingual, palatine assossiated
importance of tonsils
the first line of defence- breathing
generation of b cells in the germinal centre
what node is for the tonsils
jugulo digastric -palatine tonsils
what is tonsilitis
enlargement of the jugulo digastric
