sternothyroid muscle in dogs

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. [WP,unvetted]. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the sternothyroid muscle is

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. [WP,unvetted]. The atlas records it as a muscle at the organ scale in the dog.

Where the sternothyroid muscle is

It sits within the muscular system. Only the system is known. The position shown carries almost no spatial information.

What the sternothyroid muscle connects to

The atlas records 4 typed relationships for it, across 4 kinds of connection. a kind of hyoid muscle.

Supply and innervation

Innervation: spinal nerve.

Also called

Also recorded as sternothyroid, musculus sternothyroideus, sterno-thyroideus, sternothyreoidei, sternothyreoideus and sternothyroideus. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001109, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• A kind of: hyoid muscle.
• Innervated by: spinal nerve.
• inserts into: thyroid cartilage.
• originates from: manubrium of sternum.

Questions

Where is the sternothyroid muscle?

It sits within the muscular system. Only the system is known. The position shown carries almost no spatial information.

What does the sternothyroid muscle connect to?

A kind of: hyoid muscle.

Is the sternothyroid muscle the same in other species?

This page describes the dog. The human record of the same structure sits beside it on /compare, over one shared model rather than two atlases built separately.