Covers the layers of the trachea, listed from the inner respiratory epithelium outwards to the adventitia, including the lamina propria, submucosal seromucous glands, perichondrium and cartilage. It then gives the trachea's length, its position between the larynx and thorax in cervical and thoracic parts, and where it divides into the main bronchi at the sternal angle.
Topic 3 of 17 in the MU Sofia syllabus for Histology (Medicine, Year 2). The free AceMed note covers it in 1 section, about 107 words (1 min of reading), with 12 flashcards.
In this note
Introduction
Introduction
The trachea consists of:
- Respiratory epithelium (Stratified columnar with cilia creating brush border)
- Lamina Propria with elastic fibers, blood vessels and lymph nodules
- Submucosa with seromucous tracheal glands
- Perichondrium layer
- Hyoid cartilage layer - Covered with adventitia layer
The trachea, or windpipe, is a 9-15 cm long fibrocartilaginous tube of the lower respiratory tract. It forms the trunk of the tracheobronchial tree, or pulmonary conducting zone. The trachea extends between the larynx and thorax, consisting of two parts; cervical and thoracic. It ends at the level of the sternal angle (T5) where it divides into two main bronchi, one for each lung.
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