EXAM 6 QUESTIONS AND
COMPLETE SOLUTIONS GRADED
A+
Your Exam Plug
, Hemostasis - Answer: The process of keeping blood in the fluid state unless clotting occurs due to
vascular injury
Primary hemostasis - Answer: A platelet plug is formed on damaged vessels
Secondary hemostasis - Answer: Fibrin formation from plasma factors
What are the two roles of the vascular system? - Answer: Release of exposed substances and
vasoconstriction
What are the two exposed substances in the vascular system? - Answer: Collagen and Von Willebrand's
Factor
What are 3 symptoms of vascular disorders? - Answer: Bruising, petechiae, and mucuos membrane
bleeding
Give an example of an inherited vascular disorder. - Answer: Hereditary telangiectasia
What are 3 causes of acquired vascular disorders? - Answer: Steroids, estrogen, and age
Parent cell of platelets - Answer: megakaryocyte
Where are megakaryocytes produced? - Answer: Bone marrow
What influences the size of and the number produced of megakaryocytes? - Answer: Thrombopoietin
Endomitosis - Answer: doubling of DNA without cell division
Platelet life span - Answer: 8-12 days