Cardiovascular System Flashcards
Cardio
heart
peri
around
phleb
veins
scle/sclero
hard, hardening
thromb
clot
vas/vaso
vessel/duct
hemo/hemto
blood
vascular
blood vessels
Blood is made up of….?
55% plasma 45% formed elements developed in the red bone marrow
Red blood cells…
carry oxygen to cells
White blood cells…
Leukocytes. Immune response
Platelets
Allows for blood to clot
5 types of blood vessels…
1.Arteries, 2.arterioles, 3.capillaries, 4.venules, 5.veins
Arteries
Move blood from the heart to the body
Arterioles
A very small, almost microscopic artery
Capillaries
Microscopic vessel that connect arteriole to venule
Venules
Receive blood from capillaries
Veins
Return blood to the heart (veins have valves to prevent backflow)
Pericardium
The membrane that surrounds and protects the heart
Circuits of blood flow
Systemic (body-heart-body)
Pulmonary (heart-lungs-heart)
Functions of circuits
Transportation
Regulation
Protection