The muscles that are attached to and move your bones
Skeletal
The muscle that closes the mouth and keeps it closed
Masseter
The muscle that forms much of the heart.
Cardiac Muscle
Muscle type that makes up much of your organs.
Smooth muscles
These connect skeletal muscles to bones
Tendons
A type of action whereby muscles move involuntarily.
Reflexive
The way the eye moves during sleep.
Rapid Eye Movement (R.E.M.)
Why is protein important?
Makes muscles
How do your muscles grow? What do you need to do?
Exercise
What is the strongest muscle in the human body?
Heart
The small strips of protein located inside each myofibril.
Filaments
The tendon that attaches the calf muscle to the heel bone.
Achilles Tendon
A pair of muscles or muscle groups that act to pull a bone in opposite directions.
Antagonistic Muscles
This is another name for skeletal muscles, because you can control them by thinking about controlling them.
Voluntary Muscles
A sugar that the human body turns certain foods into. It can be used to make energy to power muscle cells.
Glucose
The muscle that connects to the back of the pelvic girdle and femur.
Gluteus Maximus
The type of energy production that requires oxygen.
Aerobic
The type of cellular energy generation that occurs when there is an inadequate supply of oxygen in that cell.
Anaerobic
A condition that occurs when a muscle is underused and therefore becomes weak and shrinks.
Atrophy
This condition occurs when tendons are overused and become inflamed.
Tendonitis
Strands of protein in the skeletal muscle cells.
Myofribils
This is produced when muscles are partially contracted.
Muscle Tone
Muscles that close the joints.
Flexor Muscles
Muscles that open the joints
Extensor Muscles
A cellular waste product created when energy is produced anaerobically.
Lactic Acid