Comprehensive Osteopathic Medical Licensing Examination (COMLEX USA) Practice

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Prepare for the COMLEX-USA with quizzes featuring flashcards and multiple-choice questions, each with hints and explanations. Gear up for your osteopathic medicine exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What vertebral level is associated with the ascending and transverse colon?

T10-T12
T12
L1-L2
T8-T10

The correct answer is: T10-T12

The correct answer is T10-T12 when considering the vertebral level associated with the ascending and transverse colon. The ascending colon primarily develops from the midgut, which receives its blood supply from the superior mesenteric artery. The relevant sympathetic innervation also occurs at the thoracic levels, particularly T10 to T12. The transverse colon is unique as it receives contributions from both the midgut and hindgut, but its proximal portion is still innervated through the T10 to T12 region. Knowledge of embryological development helps in understanding the neuroanatomical connections and associated vertebral segments. The other options either encompass vertebral segments that do not correlate as effectively with the innervation and vascular supply of the ascending and transverse colon or provide a narrower range of vertebral levels that do not include the main segments involved in the colon's development and innervation.