Soc 15 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 and blood vessels together.
Vasodilation
When veins swell up or dilate ;widening the internal diamiter (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
Vascular shunting
Process that increases blood flow to active areas during exercise by diverting blood away from inactive areas achieved by vasodilation and vasoconstriction
Red blood cells
Red blood cells transport oxygen from the lungs to the bodys cells ans carbon dioxide from the cells to the lungs
Red blood cells
They contain haemoglobin,which stores oxygen and carbon dioxide
Red blood cell
This is important to a long distance runner as their working muscles require more oxygen when running
White blood cell
The blood also contains transparent cells called white blood cells
- they have an important function as the defence of the body
-they produce antibodies to fight infection and diseases
- if an athlete has a disease or infection they may not be able to train/perform
Plateletes
Blood platelets are formed in bone marrow
-tiny fragments that clump together to help blood clot to stop bleeding
-when a blood vessel is cut, platelets rush to the area and swell into irregulae shapes, they become sticky and act as a plug
Plasma
- the main role of plasma is to take nutrients,hormones and proteins to parts of the body that need it.
-cells also put their waste products into the plasma. The plasma then helps remove this waste from the body
Immune system
The structures and processes in your body that stop disease
Thrombokinase
Substande invlolved in blood clotting
Serotonin
Hormone that triggere the clothing process
Plasma
The fluid part of blood
