B4 Flashcards
What is plasma
Liquid that contains blood cells and platelets
What does plasma transport
Electrolytes
Urea
Hormones
What is the pigment in a red blood cell called
Haemoglobin
How do platelets clot a wound
Fibrin forms a network of fibres which trap blood cells
Give a structure of a artery
Thick walls
Small lumen
Why do veins have valves
To prevent back flow of blood
What do capillaries do
-Carry blood through organs
-allow the exchange of substances with all the living cells in the body
What do double circulatory systems contain
A system that carries blood from heart to lungs and back
Another system that carries blood to the rest of the body
Where are the atriums found
Top chambers of the heart
Practice labelling a heart
Practice labelling a heart
What are stents used for
Keep narrower or blocked arteries open
What is CHD
Coronary arteries become blocked due to build up of fatty material
What is a statin
Used to lower chloresterol
Where is the natural pacemaker
Right atrium
What is an artificial pacemaker
An electrical device that corrects irregularities in the heart rate
