Capillary Exchange

Filtration is a process that occurs on the _________ end of a capillary.

arterial

Filtration is the movement of fluid by bulk flow out of the _____ through the openings (i.e. intercellular clefts and fenestrations) in the _________.

blood, capillaries

During the process of filtration fluid and small dissolved _______ flow through easily, whereas formed elements and ________ are generally blocked.

solutes, proteins

Reabsorption occurs on the ________ end of the vessel.

venous

Reabsorption is the movement of fluid by bulk flow in the opposite direction (back into the _____).

blood

Blood hydrostatic pressure is ______ at the arterial end of the capillary and ______ at the venous end of the capillary.

greater, less

Hydrostatic pressure is a ___________ pressure exerted by a fluid that pushes on the walls of a capillary both from the ________ and the ________.

mechanical, outside, inside

Osmotic pressure refers to the pull of water back into a tissue by the tissue’s concentration of ________.

proteins

Osmotic pressure is mostly driven by ________.

proteins

Osmotic pressure of the ______ is opposed by the osmotic pressure in the _____ in the interstitial tissue.

blood, fluid

Capillary exchange is the exchange of _____.

fluid

Capillaries connect ________ to _________.

arterioles, venuoles

What is blood hydrostatic pressure?

pressure exerted by the blood as it pushes against the walls of the capillary

What is interstitial fluid hydrostatic pressure?

pressure exerted by the fluid that is in the tissue as it pushes on the outside of the wall of the capillary

What are the names of the two hydrostatic pressures that oppose one another?

Blood hydrostatic pressure and interstitial fluid hydrostatic pressure

What is the blood colloid osmotic pressure?

The force that draws fluid back INTO the blood due to the proteins in blood

What is the interstitial fluid osmotic pressure?

The force that draws fluid OUT to the interstitial space due to proteins in the interstitial fluid

What are the names of the two osmotic pressures that oppose one another?

blood colloid osmotic pressure and interstitial fluid osmotic pressure

Net filtration pressure (NFP) is the sum of the pressures (forces) pushing or pulling ___ of the capillary subtracted by the pressures (forces) pushing or pulling back ____ the capillary.

out, into

What is the net filtration pressure (NFP) equation?

[Blood hydrostatic pressure (BHP) + Interstitial fluid osmotic pressure (IFOP)] - [Blood colloid osmotic pressure (BCOP) + Interstitial fluid hydrostatic pressure (IFHP)]

A POSITIVE net filtration pressure means we have ________ (forces pushing/pulling fluids OUT of the capillaries into the interstitial fluid are GREATER than forces pushing/pulling fluids INTO capillaries)

filtration

A NEGATIVE net filtration pressure means we have __________ (forces pushing/pulling fluids OUT of the capillaries into the interstitial fluid are LESS than the forces pushing/pulling fluids INTO the capillaries)

reabsorption

Filtration is mostly __________ pressure driven

hydrostatic

Which is GREATER? Protein in the interstitial fluid or protein in the capillary?

protein in the capillary

Which of the following pressure values can change and does not remain constant?

Blood hydrostatic pressure

A net filtration pressure of 0 means ______ reabsorption or filtration is occurring.

neither

Extra fluid that ends up in the tissue that can’t be recaptured in the venous end of the capillary can be recaptured by the what?

lymphatic system