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The thyroid cartilage is a hyaline cartilage structure that sits in front of the larynx and above the thyroid gland. The cartilage is composed of two halves, which meet in the middle at a peak called the laryngeal prominence, also called the Adam's apple. [1] In the midline above the prominence is the superior thyroid notch.
The thyroid cartilage and cricoid cartilage lie just above the gland, below the Adam's apple. The isthmus extends from the second to third rings of the trachea, with the uppermost part of the lobes extending to the thyroid cartilage and the lowermost around the fourth to sixth tracheal rings. [6]
The topographic structure which is externally visible and colloquially called the "Adam's apple" is caused by an anatomical structure of the thyroid cartilage called the laryngeal prominence or laryngeal protuberance protruding and forming a "bump" under the skin at the front of the throat.
The thyrohyoid membrane is attached below to the upper border of the thyroid cartilage and to the front of its superior cornu, and above to the upper margin of the posterior surface of the body and greater cornu of the hyoid bone. [1] It passes behind the posterior surface of the body of the hyoid.
The ligaments are attached chiefly to the cricoid cartilage, and may extend to the thyroid cartilage. The thyroid gland and all thyroid swelling move with the swallowing/deglutition because the thyroid is attached to the cartilage of the larynx by the suspensory ligament of Berry. Ligament of Berry also prevents the thyroid gland from sinking ...
The cricothyroid joint (or articulation) is a joint connecting the cricoid cartilage and the thyroid cartilage.It plays a key role in adjusting human voice pitch by changing the tension of the vocal cords.
The cricothyroid ligament is named after the two structures it connects: the cricoid cartilage and the thyroid cartilage. It is also known as the cricothyroid membrane, and the cricovocal membrane. [3] The various parts of the cricothyroid ligament have been named in many different ways, which can cause confusion.
Posterior surface of manubrium sterni and adjoining part of first costal cartilage: Oblique line of thyroid cartilage: Ansa cervicalis: Thyrohyoid: Oblique line of the thyroid cartilage: Lower border of the body and the greater cornu of the hyoid bone: Cervical spinal nerve 1 via the hypoglossal nerve: Omohyoid (superior belly) Intermediate ...