Soc 16: The structure of the blood vessels and blood distribution Flashcards
Vascular shunting
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 stops disease.
Thrombokinase
Substance involved in blood clotting
Serotonin
Hormone that triggers the clotting process
Plasma
The fluid part of the blood
Erythroyte
A red blood cell
Haemoglobin
A red protein in the blood that transports oxygen.
Anaemia
A condition where there is a lack of red cells or haemoglobin in the blood.
Leukocyte
White blood cell
Pathogen
An agent that causes disease,such as a virus.
Antibody
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.
Vasconstriction
When veins shrink down;narrowing of the internal diameter (lumen) of the blood vessel to decrease blood flow.
