cardiovascular (4) Flashcards
what runs parallel to arteries
deep veins
what veins are immed. beneath the skin
superficial veins
what does the superior vena cave do
collects blood from head, neck, and upper members
Purpose of inferior vena cava
collects blood from the rest of body
Inf. & sup. vena cava empty blood where
R. atrium
What assists in making blood flow towards the heart
valves
Describe hepatic portal venous system
carries absorbed substances from gut to liver; after treating blood, returned to circulation by hepatic veins.
purpose of lymphatic capillaries
located in interstitial space
collect excess interstitial fluid (lymph)
what is the thoracic duct
the major lymph vessel
what are lymph nodes
filters for lymph fluid
describe tonsils
collection of lymphoid tissue
protective structures
located at entrance resp. and dig. systems
