Research Results For 'Sternothyroid'

MANUBRIUM OF STERNUM

The manubrium of the sternum is the broad, disc-like, upper part of the sternum. It articulates with the body of the sternum at the manubriosternal joint. The manubrium of the sternum articulates with the clavicles and the sternocleidomastoid, sternohyoid, and sternothyroid muscles connect here. The top of the manubrium features the small jugular notch which admits passage of the jugular vein along the bone.
Research Manubrium of Sternum

STERNOTHYROID

The sternothyroid (sternothyroideus) is a short wide muscle that lies just beneath the sternohyoid muscle. It originates from the first bone of the sternum (breast bone) and from the edge of the cartilage of the first rib and is inserted into the thyroid cartilage. It is innervated by the upper cervical nerves through the ansa cervicalis and is supplied by the inferior and superior thyroid arteries. This muscle acts as a depressor of the thyroid cartilage.
Research Sternothyroid

STERNUM

In anatomy, the sternum is a flat, blade-like bone located at the center of the chest. It serves as the anterior site of articulation for the ribs via cartilaginous connections, called costal cartilage. The pectoralis major also anchors to the sternum, giving the shoulder joint much of its strength during flexion of the arm. The sternum features two articulations in addition to its costal articulations. One of these, called the manubriosternal joint, is between the body of the sternum and the broader upper section, called the manubrium. The manubrium of the sternum articulates with the clavicles and the sternocleidomastoid, sternohyoid, and sternothyroid muscles connect here. The lower articulation is called the xiphisternal joint, and is between the body of the sternum and a small, teardrop-shaped bone called the xiphoid process. The xiphoid process anchors the rectus abdominis, the transverse thoracic, and the diaphragm muscles, responsible for much of the muscular expansion and contraction of the abdomen.
Research Sternum

THYROHYOID

The thyrohyoid (thyrohyoideus) is a small muscle that is quadrilateral in form and forms a continuation of the sternothyroid muscle. It originates from the thyroid cartilage and inserts into the lower region of the hyoid bone. It is innervated by the upper cervical nerves passing with the hypoglossal. This muscle acts as an elevator of the thyroid cartilage, the opposite of the sternothyroid.
Research Thyrohyoid

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