When a blood capillary is cut, a clot forms under which influence?
A) negative feedback
B) positive feedback
C) extrinsic control
D) negative feedback and extrinsic control
E) none of these

Question

Quizplus · Accepted Answer

When a blood capillary is cut, the clotting process is initiated through positive feedback. Platelets are attracted to the site of injury and release chemicals that cause more platelets to aggregate and form a plug. This plug then releases more chemicals that activate the coagulation cascade and lead to the formation of a fibrin clot. Positive feedback means that the response reinforces or amplifies the initial event (in this case, the formation of the plug), and this is crucial for effective hemostasis.

When a Blood Capillary Is Cut, a Clot Forms Under