Lesson 5.2

Question 1

How many days platelets pass in blood

Answer 1

5-9 days

Question 2

How many hours platelets pass in spleen

Answer 2

36 hours stored in spleen

Question 3

Did thrombocytes had nucleus?

Answer 3

No

Question 4

What is the composition of dense granule :

Answer 4

serotonin adp atp ca2+

Question 5

Cytoplasm enzymes

Answer 5

Cyclooxygenase

Question 6

For adhesion

Answer 6

Von willebrabd factor fibronectin

Question 7

Mithogen

Answer 7

Platelets derived growth factors

Question 8

Cytokines

Answer 8

Platelet factor 4

Question 9

Which are the alpha granule

Answer 9

Adhesion
Mithogen
Plasma protein
Cytokines

Question 10

Platelet production is regulated by

Answer 10

Thrombopoietin

Question 11

If normal number of platelets
No free thrombopoietin true or false

Answer 11

True

Question 12

What are the 3 phases of Hemostasis

Answer 12

1muscular vascular spam
2primary Hemostasis
3 secondary Hemostasis

Question 13

What happen in the primary Hemostasis

Answer 13

Platelet plug formation

Question 14

What happen in the secondary Hemostasis

Answer 14

Coagulation

Question 15

The three phase of Hemostasis are followed by

Answer 15

Fibrinolysis or dissolution of the clot

Question 16

What happen in muscular spasm

Answer 16

Smooth muscle contraction: release vasoconstriction such as serotonin and thromboxane A2