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TissueDB/Tissues/Trachea

From Appropedia
Labelled illustration of the airway showing the larynx above, the trachea with its C-shaped tracheal cartilages, the carina at the tracheal bifurcation, and the primary and secondary bronchi entering the roots of both lungs.
The trachea with its C-shaped cartilage rings, running from the larynx to the carina and the primary bronchi.
License: CC-BY-3.0 by BruceBlaus

The trachea (windpipe) is the central conducting airway between the larynx and the carina. It is kept as its own tissue class — "a special form of cartilage with fibrous rings in between in a special config" — distinct from generic Cartilage (the isolated laryngeal cartilages and rings) and from Bronchial Tissue (the branching airways below the carina). Airway simulators reproduce the tracheal rings and lumen as a recognisable, palpable landmark for front-of-neck access, intubation, and bronchoscopy training.

Materials

Material Visual Tactile Simulator Notes
Castable silicone – – Pediatric Front-of-Neck Access Simulator (Kovatch) A single moulded medical-grade silicone (Shore 45) tracheal model, giving palpable thyroid- and cricoid-cartilage landmarks and a puncturable cricothyroid membrane.[1]
Photopolymer resin Paediatric Airway Management Trainer (Carter) Paediatric trachea printed to the carina from infant CT data in Stratasys Agilus30 (selected for tissue fidelity).[2]
Commercial Laerdal manikin moulded trachea (integrated) Suction-Assisted Laryngoscopy and Airway Decontamination Simulator (Kumar) Moulded trachea and glottic inlet of a Laerdal airway management trainer.[3]
Ex vivo bovine trachea Bronchoscopy-Guided Percutaneous Dilatational Tracheostomy Simulator (Kattan) Real mammalian trachea the operator palpates and punctures; provides the tracheal-ring landmarks. Source: Kattan et al. Simulation in Healthcare 2019;14(6):415–419. PMID 31804426.
3D-printed medical-grade silicone (integrated laryngotracheal model) Cricothyroidotomy Simulator (Gauger) Airway lumen of the 3D-printed silicone laryngotracheal model, distal to the cricothyroid-membrane access site. Source: Gauger et al. Int J Pediatr Otorhinolaryngol 2018;114:124–128. PMID 30262349.
Cardboard tube Cricothyrotomy Simulator (Aho) Toilet-paper roll used as the trachea-and-larynx core; a low-fidelity airway landmark.
3D-printed trachea (open-access REAL CRIC STL) Cricothyrotomy Simulator (Calvo) Reusable 3D-printed trachea under a pork-belly skin layer. Rated high-fidelity under ultrasound. The printed part is the REAL CRIC trachea, made freely available by one of the Kei authors as TheAirWayApp_Pro_Final.stl, which the model's authors offer free to download and print. It carries no Creative Commons licence, so print it locally and do not re-host it. Source: Calvo et al. Educación Médica 2021;22:305–310.
Thin cardboard tube Cricothyrotomy Simulator (D'Auria) Airway wall and lumen. Shares the substrate detailed on the White UW page.
3D-printed trachea model (open-access STL; PLA or resin) Cricothyrotomy Simulator (Kei) Reusable rigid anatomical core (the open-access REAL CRIC STL) the pork-belly skin overlays; resin lasts 100+ sessions, filament is cheaper but more brittle. The file is TheAirWayApp_Pro_Final.stl, free to download and print from the model's authors; it carries no Creative Commons licence, so print it locally and do not re-host it. Source: Kei et al. J Emerg Med 2019;56(4):426–430. PMID 30685221.
Commercial TCCC manikin airway (integrated) Cricothyrotomy Simulator (Muller) Integrated airway of a Strategic Operations 3-in-1 TCCC manikin, Surgilube-coated to reduce artificial friction. Source: Muller et al. Mil Med 2020;185(9–10):e1779–e1786. PMID 32567654.
Thin cardboard tube Cricothyrotomy Simulator (White UW) Airway wall sized to an average adult trachea.
Beef gelatin with psyllium fibre (cored lumen) Neonatal ETT Ultrasound Simulator (Qaim Ali) Upper hollow lumen in a gelatin-psyllium block; on a transverse neck ultrasound the air-filled lumen reads as the trachea and the gelatin as soft tissue. Source: Qaim Ali et al. BMC Med Educ 2020;20:409. PMID 33160342.
Plastic tubing – – Chest Tube Insertion Simulator (Brannan) Plastic-tubing air path labelled the trachea in the source.
  • Cartilage — the trachea is a specialized cartilage form. The isolated laryngeal (thyroid and cricoid) cartilages and the individual tracheal rings currently sit under Cartilage.
  • Bronchial Tissue — the airway continues past the carina into the bronchi (sibling airway class).

References

[edit source]
  1. ↑ Kovatch KJ, Powell AR, Green K, Reighard CL, Green GE, Gauger VT, Rooney DM, Zopf DA. Development and Multidisciplinary Preliminary Validation of a 3-Dimensional-Printed Pediatric Airway Model for Emergency Airway Front-of-Neck Access Procedures. Anesthesia & Analgesia 2020;130(2):445–451. DOI 10.1213/ANE.0000000000003774. PMID 30234534.
  2. ↑ Carter JC, Broadbent J, Murphy EC, Guy B, Baguley KE, Young J. A three-dimensional (3D) printed paediatric trachea for airway management training. Anaesthesia and Intensive Care 2020;48(3):243–245. DOI 10.1177/0310057X20925827. PMID 32536185.
  3. ↑ Kumar R, Kumar R. An Indigenous Suction-assisted Laryngoscopy and Airway Decontamination Simulation System. Indian Journal of Critical Care Medicine 2024;28(7):702–705. DOI 10.5005/jp-journals-10071-24760. PMID 38994267. CC BY-NC 4.0.
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Authors Ian-laurel, Arturo Pelayo
License CC-BY-SA-4.0
Language English (en)
Related 0 subpages, 22 pages link here
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Created April 3, 2026 by Arturo Pelayo
Last edit November 8, 2026 by Arturo Pelayo
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