Upper Back Muscle that moves your head and neck
Anterior Upper Arm Muscle that moves the humerus
Anterior thigh muscle that causes extension at the knee
Posterior Shoulder muscle
Posterior Upper arm Muscle
Lower Back muscle
Posterior Thigh Muscle
Posterior Calf Muscle
a large tendon that runs from the heel to the calf
Please allow access to your computer’s microphone to use Voice Recording.
We can’t access your microphone!
Click the icon above to update your browser permissions above and try again
Reload the page to try again!
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Your microphone is muted
For help fixing this issue, see this FAQ.
NEW! Voice Recording
Click the mic to start.