Physiology of Blood Composition and Functions
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Questions and Answers

What stimulates the swell change in shape and pseudopodia put out by platelets?

  • Membrane phospholipids
  • Thrombin and ADP (correct)
  • Collagen exposure
  • Platelet activating factor

Which factor is exposed and reorganized to provide an ideal surface for the concentration of clotting factors and to start the coagulation process?

  • Thromboxane synthase
  • Thromboxane A2
  • Prostacyclin
  • Platelet factor 3 (PF3) (correct)

What is the irreversible fusion of platelets referred to as?

  • Platelet Fusion (correct)
  • Collagen contact
  • Intrinsic pathway
  • Coagulation Cascade

Which enzyme is responsible for the conversion of prothrombin to thrombin?

<p>Thromboxane A2 (C)</p> Signup and view all the answers

What provides an ideal surface for the concentration of clotting factors and to start the coagulation process?

<p>Membrane phospholipids (C)</p> Signup and view all the answers

What is the function of platelets in the mechanism of hemostasis?

<p>Formation of temporary hemostatic plug (B)</p> Signup and view all the answers

Which component makes up the majority of the composition of blood?

<p>Plasma (C)</p> Signup and view all the answers

What are the chief cations found in the plasma composition of blood?

<p>Sodium (Na+) (A)</p> Signup and view all the answers

Which blood component is responsible for transport, defense, and homeostasis?

<p>Plasma (A)</p> Signup and view all the answers

During hemostasis, what is the function of vasoconstriction of blood vessels at the site of injury?

<p>To stop bleeding by reducing blood flow to the injured area (A)</p> Signup and view all the answers

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