THE CARDIOVASCULAR SYSTEM Flashcards
THE CARDIOVASCULAR SYSTEM HAS THREE MAIN FUNCTIONS
1) TRANSPORT OF SUBSTANCES
2) TEMLPERATURE CONTROL
3) CLOTTING OF WOUNDS
HOW IS THE TRANSPORT OF SUBSTANCES IN THE CARDIOVASCULAR SYSTEM
TRANSPORTING THINGS AROUND THE BODY IN THE BLOODSTREAM, LIKE OXYGEN, CARBON DIOXIDE, AND NUTRIENTS GIVES THE MUSCLES WHAT THEY NEED TO RELEASE ENERGY TO MOVE DURING EXERCISE
HOW IS THE TEMPERATURE CONTROL IN THE CARDIOVASCULAR SYSTEM
MOVING MORE BLOOD NEARER THE SKIN COOLS THE BODY MORE QUICKLY, THIS MEANS YOU CAN EXERCISE FOR A LONG-TIME WITHOUR OVERHEATING
HOW IS THE CLOTTING OF WOUNDS IN THE CARDIOVASCULAR SYSTEM
YOUR BLOOD CLOTS TO SEAL CUTS, THIS STOPS BLEEDING TOO MUCH IF YOU GET A CUT, AND HELPS TO PREVENT WOUNDS BECOMING INFECTED
THE CARDIOVASCULAR SYSTEM IS MADE UP OF THREE MAIN PARTS (…)
THE HEART, BLOOD AND BLOOD VESSELS
(…) CARRY BLOOD
ARTERIES, VEINS AND CAPILLARIES
WHAT DOES ARTERIES DO
THEY CARRY BLOOD AWAY FROM THE HEART, ALL ARTERIES CARRY OXYGENATED BLOOD EXPECT FOR THE PULMONARY ARTERIES
THEIR THICK, MUSCULAR WALLS ALLOW THEM TO CARRY BOOD FLOWING AT A HIGH PRESSURE
WHAT DOES VEINS DO
THEY CARRY BLOOD TOWARDS THE HEART, ALL VEINS CARRY DEOXYGENATED BLOOD, EXPECT PULMONARY VEINS
THEY CARRY BLOOD AT LOW PRESSURE, SO THEY HAVE THINNER WALLS AND LESS MUSCLE THAN ARTERIES
WHAT DOES CAPILLARIES DO
THEY CARRY BLOOD THROUGH THE BODY TO EXCHANGE OXYGEN, CARBON DIOXIDE AND NUTRIENTS WITH THE BODY TISSUES
THEY HAVE VERY THIN WALLS SO SUBSTANCES CAN EASILY PASS THROUGH
YOUR BLOOD IS MADE UP OF (…)
CELLS, PLATELETS AND PLASMA
WHAT DOES RED BLOOD CELLS DO
THEY CARRY OXYGEN AROUND THE BODY SO IT CAN BE USED TO RELEASE ENERGY NEEDED BY MUSCLES DURING PHYSICAL ACTIVITY
WHAT DOES WHITE BLOOD CELLS DO
THEY FIGHT AGAINST DISEASE SO YOU STAY HEALTHY AND PERFORM WELL
WHAT DOES PLATELETS DO
THEY HELP BLOOD TO CLOT AT WOUNDS SO THEY DONT BECOME INFECTED
WHAT DOES PLASMA DO
IT CARRIES EVERYUTHING IN THE BLOODSTREAM (BLOOD CELLS, DIGESTED FOOD AND WASTE)
