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Platelets > Functions > Flashcards

Functions Flashcards

1
Q

Onset of blood clotting is due to

A

Intrinsic prothrombin activated by platelets

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2
Q

Clot retraction criteria

A

Contractile proteins namely actin, myosin,and thrombostein in the cytoplasm of platelets

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3
Q

Haemostasis

A

Prevention of blood loss

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4
Q

Constriction of bloodvessel due to

A

Secretion of 5 -HT by platelets

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5
Q

Formation of temporary plugs

A

Seal the damage in the blood vessels

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6
Q

Sealing the damage in blood vessels by platelets is due to the property of

A

Adhesive property

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7
Q

Thrombocytopenia ,Thrombocytosis, thrombocythemia

A

*decrease in count
*increase in count
*persistent and abnormal increase

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8
Q

Fate of platelets

A

10 days

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9
Q

Development or formation of platelets

A

Pluripotent stem cells-CFU M -megakaryocyte-pseudopodium -platelets

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10
Q

Glycoprotein screated by liver and kidneys for the formation of platelets

A

Thrombopoietin

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Platelets (4 decks)

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