The quads extend your knees when your legs straighten. The hamstrings, sartorius and gastrocnemius flex your knees. The gastrocnemius and soleus assist during plantar flexion, when you push up from a step, while the tibialis anterior is primarily responsible for dorsiflexion when your foot lands on a step.
You need to be just a bit more specific on what you're referring to so that I can help you.
Natural disasters are really inevitable, no matter your location. Tommy could research and take the appropriate steps for an earthquake. Considering the severity of his fear, he could look into therapy or something to distract him from the thought of it.
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I need more information that doesn't make any sense?
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