What type of movement of materials occurs in the midsection of a capillary?
A)Diffusion into and out of the capillary
B)Blood pressure pushing materials out of the capillary
C)Osmotic pressure drawing materials into the capillary

Question

Quizplus · Accepted Answer

The midsection of a capillary is where materials are exchanged between the blood and surrounding tissues. This exchange occurs through the process of diffusion, where molecules move from an area of higher concentration to an area of lower concentration. Therefore, A is the correct answer as it describes the movement of materials through diffusion in and out of the capillary. B and C are incorrect as blood pressure and osmotic pressure are involved in other areas of capillary function, but not in the midsection where molecular exchange occurs.

What Type of Movement of Materials Occurs in the Midsection