Lymphatic System Flashcards
(46 cards)
What does the lymphatic system provide?
Return to the circulation for fluid that has leaked from capillary blood into the surrounding tissue
What is the lymphatic system?
Complex network of lymphatic vessels, lymph nodes & other lymphoid tissue
What is the name of the fluid that is found in the tissue?
Lymph fluid
What does lymph fluid contain?
Lymphocytes (white blood cells)
What do lymphocytes play a role in?
Immunity
What are the principle functions of the lymphatic system?
Bathe cells deep within tissue, providing nutrients.
Maintain fluid balance between plasma & interstitial fluid.
House lymphocytes.
Allow the absorption of fatty acids from the gut (into lacteals)
Where is the cervical lymph node located?
Neck
Where does the lymphatic thoracic duct enter?
Left subclavian vein
Where does the right lymphatic duct enter?
Right subclavian vein
Where are the axillary lymph nodes located?
Armpits
Where is the lymphatic thoracic duct located?
Bottom of thoracic cavity
What is the cisterna chyli?
Lymph junction to the legs
Where r the inguinal lymph nodes located?
Groin
What are the principle lymphatic vessels?
Thymus & spleen
Where are lymph nodes located?
Near main arteries
Where is lymph formed?
Capillary beds as blood flows through capillaries
Why does fluid tend to leave the blood & enter the interstitial space?
Due to relative pressure in blood vessels
What part of the capillary beds does the lymph tend to leave in?
Arterial part
Where does lymph tend to return to the blood?
Venous part
Even when plasma protein levels are normal how foes the fluid act?
More fluid leaves the blood than re-enters
What happens to the excess fluid in the tissue?
Drains into tiny blind ended vessels called lymphatic capillaries
What is the fluid that drains into lymphatic capillaries called?
Lymph (clear, colourless)
Why is lymph similar to plasma?
Electrolyte compsition
What does lymph contain very little of?
Protein
