939
By binding the hirudin - like extracellular amino terminal domain ( the so - called thrombin receptor ) , thrombin activates platelets and smooth muscle cells , thus promoting platelet pro - coagulant activity , shape change , secretion and release of agonists ( ADP and TxA2 ) , expression of P - selectin , activation of the alphaIIbbeta3 integrin receptor , and aggregation .
 Anatomy: extracellular; Anatomy: platelets; Anatomy: smooth muscle cells; Anatomy: platelet
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Anatomy: extracellular; Anatomy: platelets; Anatomy: smooth muscle cells; Anatomy: platelet