Question

bled: midterm
saved
g15 lung model with larynx, 7 part © 3b scientific gmbh, germany, 2017, apr photo © mcgraw-hill education
www.3bscientific.com
which structure is highlighted and indicated by the leader line?
multiple choice
internal jugular veins
pulmonary trunk
brachiocephalic veins
subclavian veins
heart

Explanation:

To determine the highlighted structure, we analyze the options:

• Internal jugular veins: Positioned more superiorly near the neck, not matching the highlighted area.
• Pulmonary trunk: Carries blood from the heart to the lungs, but its location and appearance differ from the highlighted blue structures (veins, not an artery - like trunk).
• Brachiocephalic veins: Formed by the union of subclavian and internal jugular veins, located at the base of the neck/upper chest, matching the highlighted blue, curved venous structures.
• Subclavian veins: Part of the formation of brachiocephalic veins but are more lateral/closer to the arms, not the merged, central - looking highlighted veins.
• Heart: A muscular organ, not the blue - highlighted venous structure.

Answer:

C. Brachiocephalic veins