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The sternothyroid muscle (or sternothyroideus) is an infrahyoid muscle of the neck. [1] ... The upward extension of a thyroid swelling is prevented by the attachment ...
The duct continues in front of the thyrohyoid membrane, sternothyroid muscle, and sternohyoid muscle, before terminating in the inferior segment of the neck at the thyroid. [ 4 ] Failures of duct removal surgeries have proven that the suprahyoid region of the duct can have many microscopic branches that connect to the base of the tongue.
Excluding the sternothyroid, the infrahyoid muscles either originate from or insert on to the hyoid bone. [ 2 ] The term infrahyoid refers to the region below the hyoid bone , while the term strap muscles refers to the long and flat muscle shapes which resembles a strap .
The thyrohyoid muscle is a small skeletal muscle of the neck. Above, it attaches onto the greater cornu of the hyoid bone ; below, it attaches onto the oblique line of the thyroid cartilage . It is innervated by fibres derived from the cervical spinal nerve 1 that run with the hypoglossal nerve (CN XII) to reach this muscle.
The sternohyoid muscle is a bilaterally paired, [1] long, [1] thin, [1] [2] narrow strap muscle [2] of the anterior neck. [1] It is one of the infrahyoid muscles. It is innervated by the ansa cervicalis. It acts to depress the hyoid bone. The sternohyoid muscle is a flat muscle located on both sides of the neck, part of the infrahyoid muscle group.
Sternohyoid, omohyoid, sternothyroid are supplied by ansa cervicalis. Thyrohyoid: by a branch of hypoglossal nerve but the fibres are all 'hitch-hiking' from C1. Development
It envelopes the strap muscles (sternohyoid, sternothyroid, thyrohyoid, and omohyoid muscles). It also surrounds the pharynx, larynx, trachea, esophagus, thyroid, parathyroids, buccinators, and constrictor muscles of the pharynx. The deep layer is also known as the prevertebral fascia. It surrounds the paraspinous muscles and cervical vertebrae ...
Swelling of damaged muscle occasionally leads to compartment syndrome—compression of surrounding tissues, such as nerves and blood vessels, in the same fascial compartment—leading to the loss of blood supply and damage or loss of function in the part(s) of the body supplied by these structures. Symptoms of this complication include pain or ...
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