QuestionSBA
QuestionChoice
The image shows an axial view of the neck region. The structure indicated by the arrow is located in the midline and has a maintained circular lumen in this anatomical preparation, which is consistent with the appearance of the trachea – whose lumen is maintained by the cartilaginous rings in its structure.
10008800
a
Trachea
QuestionChoice
The image shows an axial view of the neck region. The left common carotid artery is not a midline structure as the one indicated by the arrow. The left and right common carotid arteries can be seen in this image, they lie medial to the left and right internal jugular veins, and have a smaller lumen.  The structure indicated by the arrow is located in the midline and has a maintained circular lumen in this anatomical preparation, which is consistent with the appearance of the trachea – whose lumen is maintained by the cartilaginous rings in its structure.
10008804
e
Left common carotid artery
QuestionChoice
The image shows an axial view of the neck region. The oesophagus is located posterior to the trachea and is visible in this image. The walls of the oesophagus are not enhanced by cartilage (like the trachea), so its walls appear collapsed in the absence of a food bolus. The structure indicated by the arrow is located in the midline as well and has a maintained circular lumen in this anatomical preparation, which is consistent with the appearance of the trachea – whose lumen is maintained by the cartilaginous rings in its structure.
10008801
b
Oesophagus
QuestionChoice
The image shows an axial view of the neck region. The descending aorta is not visible at this level in the neck. The descending aorta begins at T4 and descends through the posterior mediastinum, close to the posterior wall of the thoracic cavity, near the vertebral column. The structure indicated by the arrow is located in the midline and has a maintained circular lumen in this anatomical preparation, which is consistent with the appearance of the trachea – whose lumen is maintained by the cartilaginous rings in its structure.
10008802
c
Descending aorta
QuestionChoice
The image shows an axial view of the neck region. The right jugular vein is not a midline structure as indicated by the arrow. The left and right jugular veins are visible in this image. They are located lateral to the left and right common carotid artery (which have a smaller lumen). The structure indicated by the arrow is located in the midline and has a maintained circular lumen in this anatomical preparation, which is consistent with the appearance of the trachea – whose lumen is maintained by the cartilaginous rings in its structure.
10008803
d
Right jugular vein
Concept
Chapter
2693
5278
Bronchial tree
Topic
198
Thoracic anatomy
14307
Picture
1690
62 - Bronchial tree (trachea).png
images/1zq2bh1m1682950435183.jpg
images/1zq2bh1m1682950435183_256.jpg
images/1zq2bh1m1682950435183_512.jpg
pBgOFYL5d3d4h4h7dXeIeQeIZZAo
Topic
198
Thoracic anatomy
Identify the anatomical structure indicated by the blue arrow in the image below

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a