Steps of muscle contraction: Is when your muscle stiffen/ tighten up.
Muscle Fatigue: According to the medical dictionary, muscle fatigue is "A state of exhaustion or loss of strength and/or muscle endurance following strenuous activity associated with the accumulation of lactic acid in muscles."
Oxygen debt is when the body goes into its "extra oxygen tank" because you've used the all of your ready to use oxygen in some type of strenuous activity- most likely exercise. Your body then has to turn lactic acid into glucose.
Disease with the Muscular System:
Myasthenia Gravis: A condition that makes your muscles weak.
Symptoms: Weakness
Long/ short term effects: Trouble walking, droopy eyelids, double vision, and trouble talking.
https://www.youtube.com/watch?v=Ktv-CaOt6UQhttps://www.youtube.com/watch?v=I80Xx7pA9hQ
https://www.purposegames.com/game/2f94bd2050