The heart and associated bloodvessels compose the cardiovascular system which circulates blood throughout the body. The urinary system filters, stores, and conducts some wastes from the body. The bladder and urethra are part of the urinary system. The testes and ovaries are part of the reproductive system and this system perpetuates the species. The differentiation of male and female systems makes this organ system unique among the other systems. These eleven organs systems can be remembered by the memory clue LN Cries Drum. Each letter represents the first letter of a name of an organ system. Label the organ systems underneath each illustration and label the selected organs by using the terms available. When you finish, select different colors for each organ system and color them in.

Organ System Organ

Cardiovascular system Heart

Urinary system Bladder

Reproductive system Testes


Blood vessels



Label Each Organ System Blood Vessels

Answer Key: a. Heart, b. Blood vessels, c. Cardiovascular, d. Bladder, e. Urethra, f. Urinary, g. Ovary, h. Testis, I. Reproductive

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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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