Starling Forces & Calculating Net Filtration Rate

The video tutorial explains how to calculate the capillary net filtration rate. It begins with an overview of capillary physiology and the processes of filtration and reabsorption. The tutorial then delves into the roles of hydrostatic and osmotic pressures in fluid movement across capillary walls. Finally, it provides a detailed calculation of the net filtration rate using specific values and equations.

What is the primary function of filtration in capillaries?

• To increase blood pressure within the capillary

• To move fluid from the capillary into the interstitial fluid

• To decrease blood pressure within the capillary

• To move fluid from the interstitial fluid into the capillary

Which pressure tends to force fluid out of the capillary?

• Interstitial fluid hydrostatic pressure

• Interstitial colloid osmotic pressure

• Capillary hydrostatic pressure

• Plasma colloid osmotic pressure

Why is the interstitial fluid hydrostatic pressure negative?

• Due to the presence of serum albumin

• Because of the high blood pressure in the capillaries

• Due to the continuous drainage by the lymphatic system

• Because of the high protein content in the interstitial fluid

What is the role of plasma proteins in osmotic pressure?

• They decrease the hydrostatic pressure

• They increase the hydrostatic pressure

• They attract water towards the capillaries

• They repel water away from the capillaries

What is the value of the plasma colloid osmotic pressure in the example?

• 25 millimeters of mercury

• 15 millimeters of mercury

• 30 millimeters of mercury

• 10 millimeters of mercury

What is the capillary filtration coefficient used in the calculation?

• 5 milliliters per minute per millimeter of mercury

• 10 milliliters per minute per millimeter of mercury

• 20 milliliters per minute per millimeter of mercury

• 15 milliliters per minute per millimeter of mercury

What is the calculated net filtration rate in the example?

• 250 milliliters per minute

• 150 milliliters per minute

• 100 milliliters per minute

• 200 milliliters per minute