What is oncotic pressure?
The pressure exerted by the blood proteins with a charge
What is hydrostatic pressure?
associated with blood pressure
What is the drop of hydrostatic pressure from entering the capillaries from the arterial side and exiting from the venous side?
17mmHg; this is due to the constant resistance of the capillaries
What happens during elevated hydrostatic pressure? i.e. elevated blood pressure?
During elevated hydrostatic pressure there is more fluid being filtered (moving OUT) of the plasma; therefore there is less absorption; this creates edema of the interstitial fluid
What happens when hydrostatic pressure drops? i.e. hypotension?
When hydrostatic pressure drops, oncotic pressure goes up meaning more fluid is being drawn into the plasma; think of it as a way for the body to retain fluid in hypotensive shock w/ massive blood loss
Oncotic pressure increases or decreases as fluid moves through the capillaries?
oncotic pressure increases
Hydrostatic pressure increases or decreases as fluid moves through the capillaries?
hydrostatic pressure decreases
Which is greater: the net filtration or the net absorption as fluid moves through the capillaries?
the net filtration is greater; the fluid moving out of the capillaries is then picked up by the lymphatic system
This ion is not fully reabsorbed in the proximal tubule
Chloride