Blood tisdues

Question 1

What are the functions of blood?

Answer 1

Transportation
Regulation
Protection

Question 2

What are the components of blood?

Answer 2

Plasma (54%)
Red blood cells (45%)
White blood cells + platelets (1%)

Question 3

What is the role of blood plasma?

Answer 3

Carries CO2 in the form of carbonic acid

Question 4

What is the role of platelets?

Answer 4

Form a platelet plug and promote clotting

Question 5

What is the role of red blood cells?

Answer 5

Carry haemoglobin carrying O2, carries CO2 to lungs

Question 6

What are the granular leukocytes (type of white blood cells) and their roles?

Answer 6

Neutrophils (engulf bacteria via phagocytosis)
Basophils (release chemicals and intensify the inflammatory response)
Eosinophils (release histaminase to reduce inflammation)

Question 7

What are the agranular leukocytes (white blood cells) and their roles?

Answer 7

Lymphocytes (T+B cells involved in adaptive immunity)
Monocytes (Destroy microbes by phagocytosis)

Question 8

What is the blood clotting pathway?

Answer 8

1.Vessel injury
2.Platelets become sticky
3.Vasoconstriction
4.Plug formation
5.Extrinsic+Intrinsic pathway
6.Release of prothrombinase starts common pathway
7.Thrombin activation
8.Clot formation
9.Clot retraction
10.Repair
5.Fibrinolysis