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17 Απρ 2024 · The carina of the trachea is a cartilaginous projection of the last tracheal ring, found at the bifurcation of the trachea into the left and right main (primary/principal) bronchi. It lies in the sagittal plane and is located in line with the sternal angle, at the level of the fourth thoracic vertebra (T4).
- Trachea
The tracheal bifurcation houses a sagittally-oriented...
- Trachea
19 Σεπ 2023 · The tracheal bifurcation houses a sagittally-oriented cartilaginous ridge called the carina. The right main bronchus is shorter, wider and courses almost vertically compared to the left one. Therefore, it is more susceptible to foreign body obstructions.
The carina is a cartilaginous ridge separating the left and right main bronchi that is formed by the inferior-ward and posterior-ward prolongation of the inferior-most tracheal cartilage. [2] The carina occurs at the lower end of the trachea - usually at the level of the 4th to 5th thoracic vertebra.
The carina of trachea is a cartilaginous ridge within the trachea that runs antero-posteriorly between the two primary bronchi at the site of the tracheal bifurcation at the lower end of the trachea (usually at the level of the 5th thoracic vertebra, which is in line with the angle of Louis, but may raise or descend up to two vertebrae higher ...
31 Οκτ 2020 · Fig 1. Overview of the tracheobronchial tree. Key: Green – upper lobe, yellow – middle lobe, blue – lower lobe. Structure. The trachea, like all of the larger respiratory airways, is held open by cartilage – here in C-shaped rings. The free ends of these rings are supported by the trachealis muscle.
The trachea begins at the lower border of the cricoid cartilage and extends to the level of the carina (Fig. 1). It is composed of C-shaped cartilaginous rings that form the anterior and lateral walls. The posterior membranous wall connects the arms of the “C” to form an ovoid tracheal lumen.
The trachea branches into the right and left primary bronchi at the carina. These bronchi are also lined by pseudostratified ciliated columnar epithelium containing mucus-producing goblet cells ( \(\PageIndex{1}\)b).
