1. Good morning!
Please have a sharpened pencil and your biology book, and be silently at your seat by the time the bell rings!
Be prepared to take the quiz over the first twenty Greek/Latin terms within 5 minutes after the bell.

2. Muscular system

3. Functions
Movement

4. Types of muscle tissue
Skeletal muscle
Smooth muscle
Cardiac muscle

5. Skeletal muscles Most consciously controlled by nervous system
Attached to bones
Cells are large, have many nuclei, vary in length from 1 mm to 30 cm, striated

6. Smooth muscles Usually not under conscious control
Spindle-shaped, 1 nucleus, not striated
Walls of hollow structures like digestive tract, blood vessels, intestines

7. Cardiac muscles Found only in heart
Striated like skeletal, but cells are smaller
May have 1-2 nuclei
Similar to smooth b/c nervous system does not voluntarily control

8. Muscle contraction

9. Tendons Tough connective tissue
Attached to bone to make them work as levers
Joint acts as fulcrum

10. Work it, baby, work it Biceps contracts, elbow bends/flexes
Triceps must contract to extend
Aerobic – better efficiency, endurance
Resistance – muscle size, strength, lower body fat, stronger bones