1. MUSCLE TISSUE

2. Muscle Tissue Characteristics
Contractile
Made of contractile proteins
Cells are called fibers

3. Skeletal Muscle Cells have multiple nuclei 40% of body weight
Under voluntary control; attached to skeleton
Striated, or banded, appearance
Cells have multiple nuclei

4. Smooth Muscle Characteristics
Not under voluntary control
Found in walls of hollow organs, skin, and eyes
Tapered and have no striations

5. Cardiac Muscle Characteristics
Muscle of the heart
It is not under voluntary control
Striated
Connected to each other via intercalated discs

6. Compare the muscles:

9. Check Your Knowledge What are muscle cells made of? PROTEIN
What are muscle cells called?
FIBERS
What are three types of muscles?
SKELETAL, SMOOTH, AND CARDIAC

10. More Muscle Questions…
Which 2 types of muscle are involuntary?
SMOOTH AND CARDIAC
Which muscle type can be controlled consciously?
SKELETAL
Which muscle type/s have striations?
SKELETAL AND CARDIAC