TRACHEA
TERMINOLOGY
| TRACHEA | TRACHEA | |
| Pars cervicalis; pars colli | Cervical part | |
| Pars thoracica | Thoracic part | |
| Cartilagines tracheales | Tracheal cartilages | |
| M. trachealis | Trachealis | |
| Ligg. anularia; ligg. trachealia | Anular ligaments | |
| Paries membranaceus | Membranous wall | |
| Bifurcatio tracheae | Tracheal bifurcation | |
| Carina tracheae | Carina of trachea | |
| Tunica mucosa | Mucosa; mucous membrane | |
| Glandulae tracheales | Tracheal glands |
- TRACHEA
- Synonyms
- Rough air vessel ,
- Structural Features
- Non collapsible
- Cartilages
- Presence of c shaped cartilaginous rings deficient posteriorly
- Hyaline cartilage
- Trachealis muscle
- Annular ligament
- Membranous wall
- Microscopic Features
- mucous membrane
- mucous epithelium
- mucous glands
- hyaline cartilage
- Tracheal glands
- Dimensions
- 10 to 15 cm long
- Situation
- Upper half in neck
- Lower half in superior mediastinum
- Parts
- Cervical part
- Begins at
- Lower border of cricoid cartilage opposite C6 vertebra
- Relations
- Anterior
- Isthmus of thyroid gland covering second and third tracheal rings
- Inferior thyroid veins below isthmus
- Fascia
- Pretracheal fascia enclosing thyroid
- Sternohyoid and sternothyroid muscles
- Investing layer of deep cervical fascia
- Skin and superficial fascia
- Posterior
- Oesophagus
- Longus colli
- Recurrent laryngeal nerve in tracheo oesophageal groove
- Each side
- Corresponding lobe of thyroid gland
- Common carotid artery with in carotid sheath
- Thoracic part
- Follows curvature of spine , runs downards
- Enters thorax in median plane
- Tracheal bifurcation
- Carina of trachea