@zugedanit (1958)
February 17, 2007 6:34pm CST
Can you describe the state of each of the two muscles (biceps and triceps) when the lower arm is moved up?
1 response
@hotsauz8 (97)
• United States
18 Feb 07
When you flex your arm? Depending on how you are flexing, when you move your fist above your shoulder your biceps would be flexed and your triceps would be relaxed.