Loading
Previous Topic Previous slide Next slide Next Topic

Responses to Hemorrhage

  • Study Notes
  • Discuss This Topic
    Collette M.
    US
    Collette M.

    When you get a cut your body response is to swell to help stop the bleeding.

    Brian W.
    GB
    Brian W.

    Blood vessels can be damaged by transection or rupture, at the point of damage whole blood will flow from the damaged blood vessel' this is called a haemorrhage. HEMO is blood RRHAG is excessive flow or 'bursting forth' When this occurs the blood system responds in a number of ways. The first response to the damaged area of the blood vessel , is that the blood vessel will contract i.e. spasm this will considerably slow or reduce the volume of blood loss, also the platelets move to the cut in the vessel wall. If the damage to the blood vessel is small the platelets form a plug by clumping which may stop the bleeding. A more complicated process of sealing off holes in blood vessels is called coagulation or clotting , this is where the blood forms a solid mass to seal the opening from the damaged area, this is called a blood clot. After several intermediate steps the protein fibrinogen in the blood is converted into sticky strands of fibrin. There are areas of the body where blood is stored these are called reservoirs, these ensure the circulating blood volume, the reservoirs include the spleen and the liver and are able to release several hundred millilitres of stored blood. There are also groups of veins, such as the large abdominal veins that store several hundred millilitres of blood.

    Brian W.
    GB
    Brian W.

    How much blood can an adult lose before the system is unable to function.

    Brian W.
    GB
    Brian W.

    the blood has several way of dealing with haemorrhage, the first is the constriction of the blood vessel , The second is when platelets form a plug, the third is by clotting and forming a solid mass over the affective area. When the haemorrhage is serious and there is substantial loss of blood, the system can use blood that has ben stored in reservoirs ie the liver and the spleen, blood is also stored in the abdominal veins.

  • Text Version
Notification

You have received a new notification

Click here to view them all