Human Circulatory System Flashcards
Blood
Plasma blood cells
Blood vessels
Arteries veins capillaries
Red blood cells
Has haemoglobin to carry oxygen no nucleus disc shaped made in bone marrow
Haemoglobin
Carrys oxygen
White blood cells
Fight infection produce antibodies nucleus present no definite shape
Platelets
Blood clotting no nucleus fragments of red blood cells
Plasma
90%water carries the platelets dissolves substances
Functions of blood
Transport disease clotting
Valve
Stop backflow of blood
Cardiac muscle
It doesn’t tire
The heart
Is a pump located slightly to the left of your chest
The average rate of an adult is
70bpm
Arteries
Bring blood away
Veins
Bring blood to the heart
Why exercise
Strengthens lungs heart and other muscles reduces weight.