What is released by platelets as a platelet plug forms?Multiple ChoiceEpinephrineSerotoninVitamin KFibrin

Which statement refers to blood platelets?Multiple ChoiceRelease serotoninFormed from lymphoid stem cellsFunction in immunityFrom 3,500 to 10,500 platelets per microliter blood

What is the function of platelets?

What is initiated by the release of tissue thromboplastin?Multiple ChoiceExtrinsic clotting mechanismIntrinsic clotting mechanismPlatelet plug formationAgglutination

The platelets are suspended in a type ofEpithelial tissueMuscular tissueNervous tissueConnective tissue

In a healthy cardiovascular system, the endothelium is very smooth and coated with ______, which prevents adherence of platelets to the endothelium. Thus, unneeded blood clots do not form.Multiple choice question.serotoninprostacyclinhistamineprostaglandins