finials Flashcards
What are the main components of the circ sys.
Heart, Blood vessels, blood
4 main functions of the circ sys.
Transport, Distributes heat, Maintain sustainable fluid level, Defense against invading orgs
Arteries goes ___ from the heart
away
Veins goes ___ the heart
towards
Arteries branch into ____
arterioles
Arterioles branch into ___
Capillaries
Capillaries join to form ___
Venules
Venules join to form ____
Veins
Why do Arteries have thick layered walls?
They experience a lot of blood pressure
What is a pulse?
Blood passing through the arteries
What is the smallest red blood vessel?
Capillaries
____ connects arterioles to venules
Capillaries
The site of nutrients/oxygen exchange is called?
Capillaries
Small veins are ___
Venules
_____ _______ _______ helps push blood up in the veins
Skeletal muscle contractions