Blood Vessels


textbook compound microscope prepared microscope slides: artery cross section vein cross section live frog frog Ringer's solution paper towel rubber bands frog board or heavy cardboard (with a 1-inch hole cut in one corner) dissecting pins thread masking tape

For Optional Activity:

ice hot plate thermometer


• Wear disposable gloves when handling the live frogs.

• Return the frogs to the location indicated after the experiment.

• Wash your hands before leaving the laboratory.

The blood vessels form a closed system of tubes that carry blood to and from the heart, lungs, and body cells. These tubes include arteries and arterioles that conduct blood away from the heart; capillaries in which exchanges of substances occur between the blood and surrounding tissues; and venules and veins that return blood to the heart.

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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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