UAMS MLT MLS Hematology Exam 6 Questions & Answers 2024/2025
Hemostasis - ANSWERSThe process of keeping blood in the fluid state unless clotting occurs due to vascular injury
Primary hemostasis - ANSWERSA platelet plug is formed on damaged vessels
Secondary hemostasis - ANSWERSFibrin for...
Hemostasis - ANSWERSThe process of keeping blood in the fluid state unless clotting occurs due to
vascular injury
Primary hemostasis - ANSWERSA platelet plug is formed on damaged vessels
Secondary hemostasis - ANSWERSFibrin formation from plasma factors
What are the two roles of the vascular system? - ANSWERSRelease of exposed substances and
vasoconstriction
What are the two exposed substances in the vascular system? - ANSWERSCollagen and Von Willebrand's
Factor
What are 3 symptoms of vascular disorders? - ANSWERSBruising, petechiae, and mucuos membrane
bleeding
Give an example of an inherited vascular disorder. - ANSWERSHereditary telangiectasia
What are 3 causes of acquired vascular disorders? - ANSWERSSteroids, estrogen, and age
Parent cell of platelets - ANSWERSmegakaryocyte
Where are megakaryocytes produced? - ANSWERSBone marrow
What influences the size of and the number produced of megakaryocytes? - ANSWERSThrombopoietin
, Endomitosis - ANSWERSdoubling of DNA without cell division
Platelet life span - ANSWERS8-12 days
What fraction of platelets is in circulation? - ANSWERS2/3
Where is the other 1/3 of platelets stored? - ANSWERSSpleen
Platelet Plasma Membrane - ANSWERSContains glycocalyx that is a receptor for glycoproteins and
phospholipids
Glycoprotein IIb/IV/V is involved with platelet... - ANSWERSadhesion
Glycoprotein IIb/IIIa is involved with platelet... - ANSWERSaggregation
Glycoprotein Ib/IV/V binds with - ANSWERSvWF
Glycoprotein IIb/IIIa binds to - ANSWERSfibrinogen
Why are phospholipids necessary? - ANSWERSActivation of the intrinsic system and keeping the
reactions localized
Platelet cytoskeleton contains - ANSWERSThe cytoskeletal and microtubules
Dense platelet granules contain... (3) - ANSWERSADP, Calcium, and serotonin
Where do dense granules release their contents upon activation? - ANSWERSDirectly into the plasma
Alpha granules contain... - ANSWERSFactors I, V, and vWF
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