Biology Unit 4 – Anatomy & Physiology Williams Name: _________________________________________________ Date: __________________________ Hr: _________ Muscles 1. There are three types of muscle tissues found in the human body. What are they? What are their characteristics? Where is each type found? Type Characteristics Location Voluntary Heart Smooth 2. List the four basic functions of skeletal muscle. a. _______________________________ b. _______________________________ c. _______________________________ d. _______________________________ 3. What are tendons? How are they different from ligaments? 4. Define origin. 5. Define insertion. Biology Unit 4 – Anatomy & Physiology Williams Name: _________________________________________________ Date: __________________________ Hr: _________ 6. Choose the type of muscle tissue that fits each descriptive phrase. C= Cardiac muscle S= Smooth muscle SK= Skeletal muscle ____________ a. Forms the bulk of the wall of the heart ____________ b. Has intercalated discs ____________ c. Involuntary, non-striated ____________ d. Involuntary, striated ____________ e. Located in walls of hollow internal surfaces ____________ f. Exhibits autorhythmicity ____________ g. Requires a constant supply of oxygen so mitochondria are larger and mo ____________ h. Voluntary ____________ i. Multinucleated 7. How is energy stored in the muscles and where does it come from? 8. How does a muscle become fatigued? 9. What is an example of isometric exercise? 10. What is an example of isotonic exercise?