Tissue Fluid Formation

Capillary blood pressure causes filtration of water and small molecules from the plasma. The resulting fluid has much the same composition as the blood plasma (including nutrients, gases, and hormones), with the important exception of the plasma proteins, which are generally too large to pass through the capillary walls. The osmotic effect of these (called the plasma colloid osmotic pressure) helps to draw fluid back into the capillaries by osmosis.

OO Reconnect to chapter 15, Exchanges in the Capillaries, page 605.

Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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