Platelets: Homeostasis and Clotting

Platelets: Homeostasis and Clotting

Author: Aaron Mullally

This lesson will identify the role of platelets in maintaining homeostasis and preventing major blood loss.

See More
Try a College Course Free

Sophia’s self-paced online courses are a great way to save time and money as you earn credits eligible for transfer to over 2,000 colleges and universities.*

Begin Free Trial
No credit card required

27 Sophia partners guarantee credit transfer.

245 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 21 of Sophia’s online courses. More than 2,000 colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.

Terms to Know
  • Embolism

    A circulating mass in the blood, examples: fatty embolus or an air embolus.

  • Hemophilia

    A group of hereditary disorders that prevent clots from being formed.

  • Hemostasis

    The process of controlling/stopping bleeding from a broken vessel; platelets are the main component of hemostasis by working with the plasma protein fibrinogen to form a blood clot.

  • Platelets

    Are also called thrombocytes, platelets are actually cell fragments of bone marrow cells called megakaryocytes. Platelets are used to form blood clots to control hemostasis.

  • Stroke

    When blood flow is obstructed to an area of the brain causing brain tissue to become ischemic; if blood flow is not immediately restored brain damage will ensue.

  • Thrombin

    An enzyme in the blood that plays a critical role in hemostasis by converting the plasma protein fibrinogen into fibrin; fibrin secures platelets as they plug a damaged vessel (platelet plug) and the end result is a clot.

  • Thrombosis

    The formation of a blood clot within a vessel which obstructs blood flow through the vessel.