THE HUMAN IMMUNE SYSTEM
BLOOD GROUPS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
To form clots (i.e. scabs) when you have cuts and grazes.
|
|
|
To transport oxygen to the muscles
|
|
|
To carry dissolved sugars.
|
|
|
To produce antibodies
|
Detailed explanation-1: -Your platelets function to stop bleeding. During an injury, your platelets will cluster together at the site of the wound to act as a plug, sealing blood vessels in a process called clotting to prevent excess blood from leaving your body.
Detailed explanation-2: -Platelets help prevent blood loss at sites of vascular injury. To do this, they adhere, aggregate and form a procoagulant surface favoring thrombin generation and fibrin formation.
Detailed explanation-3: -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-4: -Platelets contribute their hemostatic capacity via adhesion, activation and aggregation, which are triggered upon tissue injury, and these actions stimulate the coagulation factors and other mediators to achieve hemostasis.