Blood Flashcards
1
Q
what are the functions of blood
A
- it protects the body against harmful bacteria
- helps to clot blood in wounds to prevent blood loss
- carries oxygen and glucose to all parts of the body
- removes carbon dioxide and waste from the body
2
Q
what is blood made up of
A
- red blood cells
- white blood cells
- platelets
- plasma
3
Q
what are red blood cells
A
red blood cells contain a red pigment called haemoglobin that binds to oxygen
4
Q
what is the function of red blood cells
A
red blood cells carry oxygen from the lungs to all the parts of the body
5
Q
what is the functions of white blood cells
A
- they destroy bacteria
- they produce antibodies that help trigger a response to remove bacteria or viruses during an infection
- white blood cells can also detect and reject foreign tissues and organs
6
Q
what does platelets do
A
they stop bleeding at wounds by forming a mesh and clotting blood
7
Q
what does plasma do ?
A
they transport substances such as carbon dioxide and digested food around the body
