EVERYDAY SCIENCE

SCIENCE

CIRCULATORY SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What allows the blood to clot?
A
plasma
B
WBC’s
C
RBC’s
D
platelets
Explanation: 

Detailed explanation-1: -When there is an injury, platelets release molecules into the blood that help turn on clotting factors . One important clotting factor is fibrin, a long, thin, and sticky protein. When it is turned on, it forms a mesh to hold the platelet plug in place. This is called a fibrin clot.

Detailed explanation-2: -Proteins on the exterior of your platelet walls are sticky to help it adhere to your blood vessels. When actively clotting, platelets extend filaments that resemble legs on a spider. These legs make contact with the broken blood vessel and other clotting factors to seal the damage and stop the bleeding.

Detailed explanation-3: -Blood clots are made up of tiny cells called platelets, bound into a meshwork of proteins such as fibrin and collagen. For platelets to stick together, proteins called integrins are needed, which in turn are activated by another protein called kindlin-3.

Detailed explanation-4: -Overview. Blood clotting normally occurs when there is damage to a blood vessel. Platelets immediately begin to adhere to the cut edges of the vessel and release chemicals to attract even more platelets. A platelet plug is formed, and the external bleeding stops.

Detailed explanation-5: -Platelets, or thrombocytes, are small, colorless cell fragments in our blood that form clots and stop or prevent bleeding. Platelets are made in our bone marrow, the sponge-like tissue inside our bones. Bone marrow contains stem cells that develop into red blood cells, white blood cells, and platelets.

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