Thorax: superior intercostal artery: practice question

The best answer is B, Costocervical trunk. The costocervical trunk arises from the second part of the subclavian artery and divides into the deep cervical artery and the supreme intercostal artery.

This artery gives anterior intercostal branches to the upper six spaces, not the supreme intercostal.

This trunk gives the inferior thyroid, suprascapular and transverse cervical arteries.

This artery supplies the rhomboids and levator scapulae, not the intercostal spaces.

It tests Thorax: superior intercostal artery in Anatomy. The supreme intercostal descends in front of the neck of the first and second ribs. The remaining posterior intercostal arteries come from the thoracic aorta.

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

Learn every nerve by its route, its muscles and what a lesion looks like at the bedside. That one habit answers a large share of questions. Then use the flashcards and the other Anatomy questions on this site to test what stuck.

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