Question

Investigators need to gather secondary evidence to prove their case. they examine the suspects for cuts or scrapes from the crime. there were no drops of blood on the locker floor, only a trace amount of blood on the broken glass of the door. how did hemostasis stop the bleeding and scab the wound of the suspect before he or she left the scene of the crime?

Answer 1

Hemostasis is the process by which the body seals a ruptured blood vessel and prevents further blood loss. The three steps in the hemostasis process are vascular spasm, the formation of a platelet plug, and coagulation (blood clotting).

Step-by-step explanation:

Hemostasis is the process by which the body seals a ruptured blood vessel and prevents further blood loss. In the case of the suspect with cuts or scrapes from the crime, hemostasis would have stopped the bleeding and scabbed the wound before they left the scene. The three steps in the hemostasis process are vascular spasm, the formation of a platelet plug, and coagulation (blood clotting). This process is essential to prevent excessive bleeding and promote wound healing.

Answer 2

Hemostasis is the process of which involves stopping the bleeding in the event when bleeding occurs, either internally or externally. In this case, there might have been a cut (from the broken glass) and made the suspect bleed but stopped by the body's hemostatic mechanisms.

The hemostatic mechanism is as follows:
(1) Immediate local vasoconstriction to prevent further blood loss
(2) Activation of platelets and the formation of a platelet plug
(3) The coagulation cascade which ultimately forms a fibrin mesh to stop the bleeding
(4) Fibrinolysis to regulate the coagluation cascade and prevent thrombosis