Soc 15 Structure Of The Heart Flashcards
Cardio-respiratory system
The interaction of the heart and lungs to supply oxygen to muscles during exercise
Cardiovascular
To do with the heart, blood vessels together
Vasolidation
when veins swell
up or dilate, widening of the
internal diameter (lumen) of the
blood vessel to allow increased
blood flow
Vasoconstriction
when veins
shrink down; narrowing of the
internal diameter (lumen) of the
blood vessel to decrease blood
flow
What are the three fuctions of the heart
Transports oxygen, carbon dioxide and nutrients. It helps clot blood. It comtrols your body temperature
Arteries
Arteries take oxygenated blood away from the heart in wide lumen
Veins
They carry deoxygenated blood towards the heart through much thinner walls
Capillaries
Are microscopic vessels that carry oxygenated blood and nutrients to the muscle