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1.triceps
a.maintains body posture

b.muscles under ones control

c.muscles on the back of arm

d. muscle of the hallow internal organs except the heart

2.smooth muscle

a.maintains body posture

b.muscles under ones control

c.muscles on the back of the arm

d.muscles of the hallow internal organs except the heart

3.skeletal muscles

a.maintains body posture

b.muscles under ones control

c.muscles on the back of the arm

d.muscles of the hallow internal organs except the heart

4.voluntary muscle

a.maintains body posture

b.muscles under ones control

c.muscles on the back of the arm

d.muscles of the hallow internal organs except the heart ​