HISTOLOGY
BLOOD VESSELS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Which component of blood is responsible for helping to stop bleeding?
|
platelets
|
|
red blood cells
|
|
white blood cells
|
|
plasma
|
Explanation:
Detailed explanation-1: -The main job of platelets, or thrombocytes, is blood clotting. Platelets are much smaller in size than the other blood cells. They group together to form clumps, or a plug, in the hole of a vessel to stop bleeding.
Detailed explanation-2: -Platelet factors so that they stick to the injured area. The “glue” that holds platelets to the blood vessel wall is von Willebrand factor, a large protein produced by the cells of the vessel wall. The proteins collagen and thrombin act at the site of the injury to induce platelets to stick together.
There is 1 question to complete.