Valves, allown blood through in one direction when the pressure builds up but close when pressure is applied in the opposite direction.
I think the blood moves in veins similarly to arteries but in the opposite direction. I mean as the heart pushes the blood into arteries, in an opposite way when heart is contracted the blood is pulled to it as a reaction for the action of pushing.
The solution was saltier than the blood. Water leaves the blood causing the cells to become like prunes or crenated. If the opposite were true, the cells would busrt from too much water.
is blood a solution, suspension, or colloid
There are two types of solutions categorized by solute concentration. If the solution has a higher saline concentration than the erythrocytes (red blood cells) it is said to be hypertonic. If the opposite is true the solution is then hypotonic.
These are valves, and are found in veins to prevent blood from flowing backwards.
There are two ways that blood is kept flowing in the same direction. The heart is pumping it in that direction, and blood vessels contain valves which prevent blood from flowing in the wrong direction.
This is because the original platelets that attach to a point will attract other platelets. The new platelets are coming from upstream in the blood and will attach to the front of the forming thrombus.
The opposite of Hypertension (high blood pressure) can be either normal blood pressure or Hypotension (low blood pressure).
Venal bloodflow is at relatively low pressure, relative to that of the arteries. Because of this, there is always the risk of blood flowing in the opposite direction. This is where valves come in - they prevent the backflow of blood in the veins.
valves
shallow