10 Questions
What percentage of the arch of the aorta is on the right side?
85
What is the location of the bifurcation of the trachea?
At the level of the 4th thoracic vertebra
What is the location of the lymph nodes in relation to the trachea and its branches?
At the 3 angles between the trachea and its branches
What percentage of the pulmonary artery is on the left side?
100
What is the name of the nerve described as 'cute and upper'?
Vagus nerve
What is the source of the arterial supply to the area?
Bronchial arteries
Where do the lymphatics drain to?
Tracheobronchial and parathymic nodes
What is the origin of the autonomic fibers that supply the area?
Vagus nerve
Which system does the venous drainage join?
Azygos system
What is the origin of the sympathetic fibers that supply the area?
Thoracic sympathetic chain
Study Notes
Anatomy of the Trachea
- Located on the right side of the neck, the trachea begins at the lower border of the cricoid cartilage (C6) and ends at the carina (T5) where it bifurcates into the right and left main bronchi.
- The trachea is approximately 10-12 cm long and 1.5-2 cm in diameter.
Relation to Surrounding Structures
- The trachea is situated anterior to the esophagus and posterior to the thyroid gland and the thyroid isthmus.
- The trachea is also related to the common carotid arteries and the vagus nerve.
Blood Supply, Lymphatic Drainage, and Innervation
- Arterial supply: bronchial arteries
- Venous drainage: via bronchial veins to theozygos system of veins
- Lymphatic drainage: to tracheobronchial and paratracheal nodes
- Nerve supply: autonomic fibers from the vagus and its recurrent laryngeal branches, and from the sympathetic chain
Test your knowledge of the anatomy of the trachea and bronchi, including their structure, location, and relationships with other organs. This quiz covers the details of the trachea, bronchi, and their surrounding tissues. Assess your understanding of the anatomy of the respiratory system.
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