Final answer:
Cervical dystonia or spasmodic torticollis is the disorder that causes sustained contraction of skeletal muscles, starting with the neck and throat muscles. It is a neuromuscular disorder that results in abnormal head positioning and je rky movements. Botulinum toxin injections, like Botox, can help relieve the symptoms of cervical dystonia.
Step-by-step explanation:
The disorder that causes sustained contraction of skeletal muscles, specifically affecting the neck and throat muscles first, is called cervical dystonia or spasmodic torticollis. It is a neuromuscular disorder that occurs due to problems with the nervous control of muscle contractions or with muscle cells themselves. This condition results in involuntary muscle contractions of the neck, leading to abnormal head positioning and je ky movements.
One treatment for cervical dystonia is the use of botulinum toxin injections, such as Botox, which can help relieve excessive muscle contractions and associated pain. Although cervical dystonia cannot be cured, this treatment has improved the quality of life for many patients with this disorder.