Answer:
Platelets are not activated before an injury occurs because that activation is inhibited while they are circulating and there is no damage to the vacular wall.
Explanation:
Platelets are responsible for forming a haemostatic stopper, at the end of the blood coagulation process. These blood components have the ability to go to the place where the vessel wall is damaged and clump together to prevent blood from leaking out.
Platelet migration and activation occurs when the vascular wall endothelium is injured. When this happens, some substances are released - such as adrenaline, ADP and thromboxane A2, among others - and promote platelet activation.
<em>However, this process should not occur before an injury occurs, as it can promote the formation of thrombi that can circulate in the blood vessels and block them.</em>
<u>An inhibitory mechanism, dependent on nitric oxide and prostaglandins, prevents platelets from being activated and clumping in the absence of injury</u>.
Answer:
A.field goal
Explanation:
when you kick the ball into the goal you are only using your feet or body no hands or arms. and that rule applies in field goal
Explanation:
The opportunistic disease was ebola virus disease (EVD) it is a viral hermorrhagic fever characterised with musclular pain, fever sore throat headache diarrhea and rashes. Kidney amd liver function
A warm bath or heating blankets.
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