Muscles
What type of tissue is responsible for moving your body by contracting and relaxing?
Muscle tissue
What is the outermost layer of the skin called?
epidermis
Name the three main types of muscles in the human body.
Skeletal, smooth, cardiac
List two functions of the skin.
Protects against injury/infection; helps regulate temperature; senses touch (any two)
Which type of muscle is attached to bones and can be controlled consciously?
Skeletal
Explain how muscles and bones work together to move a limb (use simple terms)
Muscles pull on bones at joints; when a muscle contracts it moves the bone
What happens to muscle fibers when you exercise regularly (two effects)
Muscles get stronger (increase in fiber size) and more efficient (better endurance)