Lymphatic Circulatory System (Grade 10 NSC Matric Life Sciences): Flashcards
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Lymphatic system type (open/closed)
Lymphatic system type (open/closed)
Open system - one-way flow from tissues to bloodstream
Direction of lymph flow
Direction of lymph flow
One direction only - from tissues towards the heart
Primary function of lymph nodes
Primary function of lymph nodes
Filter lymph & remove bacteria/viruses (immune defence)
Lymph node cluster locations
Lymph node cluster locations
Armpits, groin, and neck
Two main lymphatic ducts
Two main lymphatic ducts
Thoracic duct and right thoracic duct
How lymph moves (no pump)
How lymph moves (no pump)
Muscle contractions, tissue pressure, and one-way valves
Spleen location & main functions
Spleen location & main functions
Left abdomen; filters blood, destroys old RBCs, adds lymphocytes
Role of lacteals
Role of lacteals
Transport digested fats from small intestine to bloodstream
Thymus gland function
Thymus gland function
Develops T-lymphocytes (immune cells)
Elephantiasis cause
Elephantiasis cause
Parasitic infection damages lymphatic system, causes swelling