Sternothyroid muscle
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| Sternothyroid muscle | |
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| Sternothyroid visible center left | |
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| Section of the neck at about the level of the sixth cervical vertebra. Showing the arrangement of the fascia coli. (Sternothyroideus labeled at right, third from top.) | |
| Latin | musculus sternothyroideus |
| Gray's | subject #112 393 |
| Origin | manubrium |
| Insertion | thyroid cartilage |
| Artery: | |
| Nerve: | Ansa cervicalis |
| Action: | |
| Dorlands /Elsevier |
m_22/12550960 |
The Sternothyreoideus (or Sternothyroid muscle) is shorter and wider than the Sternohyoideus, beneath which it is situated.
It arises from the posterior surface of the manubrium sterni, below the origin of the Sternohyoideus, and from the edge of the cartilage of the first rib, and sometimes that of the second rib, it is inserted into the oblique line on the lamina of the thyroid cartilage.
This muscle is in close contact with its fellow at the lower part of the neck, but diverges somewhat as it ascends; it is occasionally traversed by a transverse or oblique tendinous inscription.
[edit] Variations
Doubling; absence; accessory slips to Thyreohyoideus, Inferior constrictor, or carotid sheath.
[edit] Additional images
 Superficial dissection of the right side of the neck, showing the carotid and subclavian arteries. |
 The fascia and middle thyroid veins. |
 Hypoglossal nerve, cervical plexus, and their branches. |
 Side view of the larynx, showing muscular attachments. |
[edit] External links
- LUC sthr
- Photo of model at Waynesburg College musclehead/sternothyroid
- SUNY Labs 25:03-0105 - "The Muscular triangle"
- PTCentral
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
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