The answer is Vacuoles. After water enters this cell through the osmosis, it expands to absorb water and contract to release it.
This might be a case of high velocity blood spatter. This type of blood stain is most likely to be caused by a gun of a small calibre. The gunshot usually causes high velocity blood spatter or can be caused by other objects when high amount of force is exerted. The high velocity blood spatter are caused by force travelling at a speed of 100 feet per second or more which produces droplets of diameter less than 1 mm. Explosions may also cause such high velocity blood spatter.
Explanation:
getting plenty of bed rest and fluids
using painkillers, such as ibuprofen and paracetamol – aspirin should not be given to children under 16
applying a warm or cool compress to the swollen glands to help relieve pain
