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The latissimus dorsi is the muscle responsible for moving the arm posterior or backwards.
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∙ 12y ago
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∙ 10y agoDeltoids
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What muscle of the arm that is the prime mover of forearm extension?
triceps brachii
Prime mover for pulling the arm posteriorly?
The prime mover is the Latissimus Dorsi.
What is the prime mover for arm flexion?
Pectoralis major
What Turns the arm of a generator?
It is called the prime mover.
What is the prime mover for pulling the arm posteriorly?
Latissimus Dorsi
What is a fixation of a muscle?
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.
What is the function of biceps brachii?
The function of the biceps brachii is to flex your arm at the elbow. However, even though that is the most visible muscle, the brachialis muscle is considered the prime mover in flexing at the elbow.
What muscle is the prime mover for pulling the arm posteriorly?
it's been several years since I've taken an anatomy class, but I believe it's the tricep.
The trapezius is the prime mover for most movements of the?
The trapezius muscle extends from the upper back to the back of the neck. Its main functions are to support the arm and to move the shoulder blade.
What are muscles that work in opposing pairs called?
One is the agonist and the other is called the antagonist. Agonist: muscle which is the main mover, it contracts and shortens Antagonist: muscle that lengthens and controls e.g. flexion at the elbow: the biceps are the agonist and the triceps are the antagonist.
Name the prime mover that flexes the forearm at the elbow?
It's bicep muscle.Actually its the Brachialis muscle that is the prime mover to flex the upper limb at the elbow. The biceps brachi (leymen: biceps) is only a helper and only when the arm is suppinated, suppination being the biceps primary function. Technically the arm is only the region of the upper limb between the shoulder and the elbo and thus flexion of the arm actually means lifting the humerus up and forwards. The muscles that contribute to this movement are the Clavicular part of the deltoid, clavicular head of pectoralis major, and there is a slight input from coracobrachialisNO the biceps muscle flexes the forearm (the elbow joint). The Pectoralis major is the prime mover of arm flexion. I am getting this right out of my lab book.
Which muscles straighten the arm?
no it isnt because the arm is bent by the flexor muscles (mostly just the biceps), and straightened by the extensor muscles (ie. the triceps).
