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They are muscles the pull your head back. So if you are walking along, minding your own business and hear a fighter jet cruising through the sky, when you tilt your head back so you can look up to see they are about to shoot some terrorist down, you will be using your neck extensor muscles. Conversely, when you realize that its actually just a 747 taking off, but you trip over a curb because you weren't looking were you were going, you will probably look down in preparation for impending fall. Looking down uses your neck flexors. As a rule of thumb, flexor and extensor muscles always work in opposition and generally occur in a plane that is perpendicular to the body in its anatomical position. Flexors reduce the angle of the joint (ie biceps brings forearm closer to arm) and extensors increase the angle of the joint (triceps brings forearm away from arm).
What else can I help you with?
What are the neck extensors?
The neck extensors are the group of muscles located on the back of the neck that help to extend (tilt backward) the head and neck. These muscles include the splenius capitis, semispinalis capitis, and the upper portion of the trapezius. Strengthening these muscles can help improve posture and reduce neck pain.
What lever is the head and neck extensors?
The head and neck extensors act as a third-class lever in the body. In this lever system, the fulcrum is located at the atlanto-occipital joint (where the skull meets the spine), the effort is applied by the extensor muscles at the back of the neck, and the load is the weight of the head. This arrangement allows for a greater range of motion and speed, though it requires more effort to lift the load compared to first-class levers.
What are the basic crutch muscles?
shoulder depressors, extensors, adductors and abductors. elbow extensors, wrist extensors and finger flexors.
What are the hip extensors and back extensors and shoulder extensors?
a muscle that extends or straighten a limb or body part is called extensor
Are muscles that bend a joint called extensors?
Muscles that bend a joint are flexors; musces that straighten a joint are extensors.
Most extensors are located?
Posterior
What action will occur if both the flexors and extensors contracted simultaneously?
If both the flexors and extensors contracted simultaneously there would be no movement in the muscle whatsoever.
Are triceps flexors?
no. theyre extensors
Which is the origin of the forearm extensors?
triceps brachii
Where is your back extensors located?
Low back
Examples of flexors and extensors?
example of flexors: Biceps when you flexexample of extensors: Triceps when you relax your arm
Are The forearm extensors arise primarily from the medial epicondyle?
No, the forearm extensors primarily arise from the lateral epicondyle of the humerus, not the medial epicondyle. The medial epicondyle is the origin for the forearm flexors. The extensors are responsible for extending the wrist and fingers, and their tendons run along the posterior side of the forearm.
