Tissue Fluid

Capillaries

Connect the smallest branches of arteries and veins; walls are 1 cell thick to allow the exchange of molecules.

Tissue Fluid

Watery substance that bathes cells, formed from blood plasma, allows exchange of substances between blood and cells.

Oxygen diffusion

Oxygen diffuses through capillary walls into tissue fluid and cells.

Glucose diffusion

Glucose diffuses from blood plasma across capillary walls to tissue fluid and into cells.

Urea

Waste product that diffuses from cells to tissue fluid, then across capillary walls into blood plasma.

Carbon Dioxide diffusion

Carbon dioxide diffuses from cells into tissue fluid and then into blood plasma.

Hydrostatic Pressure

Pressure from the heart beating that is created when blood is forced through the capillaries.

Oncotic Pressure

A specific type of osmotic pressure generated by large molecules like proteins in a solution.

Lymphatic System

Carries remaining tissue fluid back to the circulatory system, helping to prevent swelling.

Lymph Capillaries

Have closed ends and large pores to allow large molecules to pass through; moved by body movement.

Cardiovascular disease effects on capillaries

Increases hydrostatic pressure, reducing reabsorption and damaging capillaries.

Impact of Diabetes on capillaries

Disrupts the balance of hydrostatic and osmotic pressure affecting reabsorption.