Soc16: Blood Vessels Flashcards
Vascular shunting
The process that increases blood flow to active areas during exercise by diverting blood away from inactive areas; achieved by vasodilation and vasoconstriction
Immune system
The structures and processes in your body that stop disease.
Thrombokinase
A substance involved in blood clotting
Serotonin
A hormone that triggers the clotting process
Plasma
The fluid part of blood
Erythrocyte
Red blood cell
Haemoglobin
A red protein in the blood that transports oxygens
Anaemia
A condition where there is a lack of red blood cells or haemoglobin in the blood
Leukocyte
White blood cell
Pathogen
An agent that causes disease, such as a virus
Antibody
A chemical that destroys a pathogen
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 of the internal diameter (lumen) of the blood vessel to allow increased blood flow
Vasoconstriction
When veins shrink down; narrowing the internal diameter (lumen) of the blood vessel to decrease blood flow
