4.1 the blood Flashcards
(7 cards)
1
Q
What makes up the human circulatory system?
A
The blood, blood vessels, and heart
2
Q
What does the human circulatory system do?
A
Transport substances to and from the body cells
3
Q
What is the plasma?
A
The plasma has blood cells suspended in it and it transports proteins and other chemicals around the body
4
Q
What do red blood cells contain?
A
Red blood cells contain haemoglobin that binds to oxygen to transport it from the lungs to the tissues
5
Q
What do white blood cells do?
A
Help protect the body against infection
6
Q
What are platelets?
A
They are self fragments that start the clotting processes at wound sites
7
Q
What is haemoglobin?
A
It is the red pigment that carries oxygen around the body in the red blood cells
