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A spasm is a sudden involuntary contraction of a muscle, [1] a group of muscles, or a hollow organ, such as the bladder. A spasmodic muscle contraction may be caused by many medical conditions, including dystonia .
Over time, the involuntary spasm of the neck muscles will increase in frequency and strength until it reaches a plateau. Symptoms can also worsen while the patient is walking or during periods of increased stress. Other symptoms include muscle hypertrophy, neck pain, dysarthria and tremor. [2]
Myoclonus is a brief, involuntary, irregular (lacking rhythm) twitching of a muscle, a joint, or a group of muscles, different from clonus, which is rhythmic or regular.. Myoclonus (myo-"muscle", clonus "spasm") describes a medical sign and, generally, is not a diagnosis of a dis
anterocollis: forward flexion of the head and neck [6] and brings the chin towards the chest [5] retrocollis: hyperextension of head and neck backward [7] bringing the back of the head towards the back [5] A combination of these movements may often be observed. Torticollis can be a disorder in itself as well as a symptom in other conditions.
TOS can involve only part of the hand (as in the pinky and adjacent half of the ring finger), all of the hand, or the inner aspect of the forearm and upper arm. Pain can also be in the side of the neck, the pectoral area below the clavicle, the armpit/axillary area, and the upper back (i.e., the trapezius and rhomboid area).
A neck spasm is an involuntary contraction of the muscles in the neck region. [1] Causes of neck spasm. The possible causes of neck spasms include: [citation needed]
The scalene muscles are a group of three muscles on each side of the neck, identified as the anterior, the middle, and the posterior. They are innervated by the third to the eighth cervical spinal nerves (C3-C8). The anterior and middle scalene muscles lift the first rib and bend the neck to the side they are on. The posterior scalene lifts the ...
Torso/Neck, Back, right/left articular processes of C4-C6; transverse processes of C7 and T1-T7 spinous process, occipital bone, area between superior nuchal line and inferior nuchal line: greater occipital nerve: extends head: 2 1 multifidus lumborum Torso, Back, right/left sacrum, erector spinae aponeurosis, PSIS, and iliac crest: spinous process