Gluteus maximus
fixator
fixator
Which of these muscles is not responsible for flexion or extension of the arm?
The functions of a fixator muscle is the stabalizing of the orgin of the prime mover so that the prime mover can act more efficiently. Fixators steady the proximal end of a limb while movements occurs at the distal end. EX: The scapula is a freely movable bone that serves as the orgin for several muscles that move the arm. When the arm contracts the scapula must be held steady.
The longest shower extension arm that I found was 15" . Majority of the shower extension arms that I found were 9 -10 inches long with a few at 12 inches. It should be noted that there was at least one 9 inch shower extension arm where two of them could be combined for a total of 18 inches.
Extension of the arm at the shoulder is due to:Latissimus DorsiPosterior fibers of the DeltoidTeres MajorExtension of the elbow joint is almost entirely due to triceps brachi
The Triceps muscle
triceps brachii
Fixator
fixator
the arm