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Q: Why is a pair of muscles needed to operate the elbow joint?
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List of two joint muscles in upper and lower limb?

Two joint muscles in the upper limb is the wrist and the elbow. Two joint muscles in the lower limb is the ankle and the knee.


What allows a chicken wing to move at the elbow?

The elbow is a hinge type joint, so it will flex and extend with minimal rotation.


What do the triceps and biceps muscles do?

The triceps muscles extend (straighten) the arm, while the biceps muscles flex (bend) it at the elbow joint.


Why atleast two muscles needed to move any joint in the body......?

Two muscles are not needed to move a joint but a bone attached to a joint in 2 opposite directions .


What three muscles are involved in flexion of the elbow joint?

biceps brachii,corahobrachialis,biseps


When the forearm is extended at the elbow joint muscles acts as the prime mover?

biceps brachii


why ligaments at the elbow need to stretch?

Ligaments are essential for providing your elbow joint with stability while still allowing for a motion to occur. These ligaments provide strength and support to the elbow joint along with the surrounding muscles or your arm and forearm. If an injury occurs to the elbow joint, any one of these ligaments may be injured.


What type of joint located at the elbow?

The elbow joint is a hinge joint.


Which joint movement is possible at the elbow?

The elbow is a hinge joint so it is able only to move in one direction However as a result of the way the bones and muscles are set up the joint as a whole is able to be moved radially to the arm for a limited distance.


Which joint do the humerus and ulna meet?

Elbow joint.


What causes the joint to straighten?

The right answer is StrainThat would depend on the joint. The knee joint is straightened with the quadricep muscle (thigh). And the elbow joint is straightened with the tricep muscle (back of the arm)LigamentsPerhaps extensor muscles. (ligaments function to hold joints together, they are not muscles.)


What muscles cause the joints to straighten?

The right answer is StrainThat would depend on the joint. The knee joint is straightened with the quadricep muscle (thigh). And the elbow joint is straightened with the tricep muscle (back of the arm)LigamentsPerhaps extensor muscles. (ligaments function to hold joints together, they are not muscles.)