Muscle Fatigue

What has to be present in order for muscles to start the contraction to start?

• Sodium

• ATP

• Vitamin C

• Carbon Dioxide

To form ATP the process of _______ is used.

Tags

NGSS.HS-LS1-7

After running 3 miles, Jon is out of breath. He may feel muscle fatigue because he does not have enough?

• Potassium

• Carbon Dioxide

• Mysosin

• ATP

Tags

NGSS.HS-LS1-7

When Alice is exercising her arm muscles begin to burn. Explain what is happening.

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

Anaerobic means there is​ (a)   . When this happen a person may realize it by the muscles​ (b)  

• a lack of oxygen
• burning.
• cramping.
• stiffing. 
• a large supply of oxygen

Tags

NGSS.HS-LS2-3

We always hear about this "crossbridge" related to muscle contraction. If you were explaining what it means, what would you say?

• Where myosin binds to actin

• Where the calcium crosses into the cytoplasm

• Where calcium binds with troponin

• Where titin and myosin are connected

ability of muscle to shorten and produce tensions at its ends

• contractibility

• excitability

• elasticity

• extensibility

Explain which filament is the twisted filament while the other filament has the heads that attach. Key Words: (Actin or Myosin)