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>.
- state phone anti-smoking/tobacco quitting services, where you can talk to the experts about the best steps to be tobacco-free
- Nicotine anonymous , a place created to rehabilitate nicotine addict
- County Health department, where you can find all kind of information about how to quit using tobacco products
Answer:
<em>The above statement is true.</em>
Explanation:
As we all know, regular exercise has known to have a lot of positive impacts on a person's body. The risk factor of diseases becomes lower in people who exercise regularly. People who exercise regularly are more active and known to even have a stronger immune system. Our wellness depends on an open- more relaxed brain and the physical fitness of our body. The physical fitness of the brain as well of the body can be maintained through exercise.
I think it might be A but I'm not sure
Replace a fuse after correcting the source of the overload.
