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The cricoid arch is the curved and vertically narrow anterior portion of the cricoid cartilage. Anteriorly, it measures 5-7 mm superoinferiorly; it becomes wider on eithers side towards its transition into the cricoid lamina of that side.
A cricothyrotomy (also called cricothyroidotomy) is an incision made through the skin and cricothyroid membrane to establish a patient airway during certain life-threatening situations, such as airway obstruction by a foreign body, angioedema, or massive facial trauma.
A cricoidectomy is the surgical excision of the cricoid cartilage.The excision can often be performed under local anaesthetic and can either be partial or total. The procedure may be necessary as a treatment of pulmonary aspiration, to prevent progression to aspiration pneumonia.
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.
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]
Cricoid pressure, also known as the Sellick manoeuvre or Sellick maneuver, is a technique used in endotracheal intubation to try to reduce the risk of regurgitation. The technique involves the application of pressure to the cricoid cartilage at the neck, thus occluding the esophagus which passes directly behind it.
[3] [5] They draw up the arch of the cricoid cartilage and tilt back the upper border of the cricoid cartilage lamina. [3] [5] The distance between the vocal processes and the angle of the thyroid is increased, elongating [3] and thus tensing the vocal folds, [1] thereby resulting in higher pitch phonation. [3]
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.