The subglottis or subglottic region is the lower portion of the

larynx The larynx (), commonly called the voice box, is an organ in the top of the neck involved in breathing, producing sound and protecting the trachea against food aspiration. The opening of larynx into pharynx known as the laryngeal inlet is about ...

, extending from just beneath the

vocal cords In humans, vocal cords, also known as vocal folds or voice reeds, are folds of throat tissues that are key in creating sounds through vocalization. The size of vocal cords affects the pitch of voice. Open when breathing and vibrating for speech ...

down to the top of the

trachea The trachea, also known as the windpipe, is a Cartilage, cartilaginous tube that connects the larynx to the bronchi of the lungs, allowing the passage of air, and so is present in almost all air-breathing animals with lungs. The trachea extends ...

.Subglottis definition - MedTerms
23 December 2013. The structures in the subglottis are implicated in the regulation of the temperature of the breath. Narrowing of the subglottis is known as subglottic stenosis and may require a

tracheotomy Tracheotomy (, ), or tracheostomy, is a surgical airway management procedure which consists of making an incision (cut) on the anterior aspect (front) of the neck and opening a direct airway through an incision in the trachea (windpipe). The ...

to correct.Subglottic Stenosis in Children
23 December 2013.

References

Larynx {{Respiratory-stub