Download Study Guide for Chapter 9 Lessons 2 and 3

STUDY GUIDE CHAPTER 9 LESSON 2
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Consistent training habits are a factor associated with muscle strength.
Cardiac, smooth, and skeletal are the three different muscle categories.
Muscle fibers are no wider than a human hair.
Heredity, muscle size, and nerve function are all factors associated with muscle strength.
Approximately two-thirds of the muscles in your body are skeletal muscles.
Perform a proper warm-up and cool down to prevent muscle soreness.
Dynamic contraction has two phases, concentric and eccentric.
Skeletal muscles work together to produce complementary actions known as contraction
and extension.
9. Strength is directly related to muscle size.
10.Hypertrophy is a thickening of existing muscle fibers.
STUDY GUIDE CHAPTER 9 LESSON 3
1. Because weight training involves the coordination of several muscles, it improves
coordination.
2. Testosterone is a chemical produced by the body that plays an important role in building
muscles.
3. Muscle will not turn into fat if you stop lifting weights because they are different kinds of
tissue.
4. Muscle tone is muscle firmness and definition.
5. Females can build bone mass through weight-bearing activities and a diet of calcium rich
foods.
6. Osteoporosis is a bone disease that causes decreased bone mass and density.
7. Females have less muscle mass than males, and the total number of muscle fibers tends
to be lower in females.
8. People who stop lifting weights may see a decrease in muscle size and muscle tone.
9. Weight training can maximize bone development during adolescence.
10. The female body produces testosterone at 1/10 to 1/20 the level produced by males.