Thyroid Cartilage Anatomy

Cartilage of the larynx the thyroid cartilage is made of two plates fused anteriorly in the midline. The lateral surface of the thyroid is covered by the sternothyroid muscle and its attachment to the oblique line of the thyroid cartilage prevents the superior pole from extending superiorly under the thyrohyoid muscle.

Figure 2 From A Case Of Variant Thyroid Cartilage Anatomy

The thyroid cartilage is located superiorly towards the cricoid cartilage it is another hyaline cartilage.

Thyroid cartilage anatomy. Thyroid cartilage anatomy functions and pain. The thyroid cartilage is the largest of the nine cartilages that make up the laryngeal skeleton the cartilage structure in and around the trachea that contains the larynx. At the upper end of the fusion line is an incision the thyroid notch.

Only the cricoid cartilage does. The thyroid cartilage as a whole tended to tilt to the right against the cricoid cartilage. Later morphometric measurements of the laryngeal framework provided valuable information determining the size and extent of the cartilaginous components and human larynx as one unit 4 5.

It plays a role in the production of the human voice providing protection and support for the vocal folds. It does not completely encircle the larynx. The back section of the cartilage that is the farthest also features 2 projections in the downwards and upward directions.

Also the back border of each half of the cartilage communicates inferiorly with the cricoid cartilage at a joint known as the cricothyroid joint. Secreted by the brain tsh regulates thyroid hormone release. Posteriorly its borders are free and project upwards and downwards as the superior and inferior horns.

The muscles of the larynx act on skeletal structures including the thyroid cartilage to produce the vibration of the vocal folds which is necessary to produce vocalization. Below it is a forward projection the laryngeal prominence. Thyroid biopsy is typically done with a needle.

The thyroid cartilage consists of two laminae that are fused anteriorly in the median plane to form the laryngeal prominence. Each laminae possesses an oblique ridge with a tubercle superiorly and inferiorly. Thyroid stimulating hormone tsh.

The cricoid and thyroid cartilages shield the glottis and the entrance towards the trachea. The posterior portion of the cricoid is very stretched out giving support by not involving the thyroid cartilage. A blood test with high tsh indicates low levels of thyroid hormone hypothyroidism and low tsh suggests hyperthyroidism.

Thyroid Cartilage Earth S Lab