Question

Determine fluid movement when hydrostatic pressure exceeds colloid osmotic pressure at the arteriolar end of the capillary.

a. water is pushed out of the capillary by filtration
b. water is pushed into the capillary by absorption
c. there is no net movement of water
d. water is pulled into the capillary by absorption

Answer 1

When hydrostatic pressure is greater than colloid osmotic pressure at the arteriolar end of a capillary, filtration occurs, resulting in water being pushed out of the capillary into surrounding tissue.

Step-by-step explanation:

When hydrostatic pressure exceeds the colloid osmotic pressure at the arteriolar end of a capillary, water is pushed out of the capillary. This process is known as filtration. It is driven by the difference in pressures; where the capillary hydrostatic pressure (CHP) is greater than the blood colloidal osmotic pressure (BCOP), leading to net fluid movement out of the capillaries and into the surrounding tissue. This difference in pressure at the arteriolar end of capillaries is essential for the delivery of nutrients and the removal of waste products from the tissue cells.