Which sympathetic innervation nerve is associated with segments T10-T11?

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Study for the UCF ZOO3733C Human Anatomy Test 4. Prepare with multiple choice questions, flashcards, and get explanations for each question. Ace your exam!

The lesser splanchnic nerve is specifically associated with the sympathetic innervation of the abdominal viscera and originates from the thoracic spinal cord segments T10 and T11. This nerve carries fibers that primarily innervate the kidneys and certain regions of the adrenal glands.

Sympathetic fibers generally originate from the thoracolumbar region of the spinal cord, particularly from T1 to L2. The greater splanchnic nerve, arising from T5 to T9, supplies different abdominal organs, while the vagus nerve, originating in the brainstem, provides parasympathetic innervation, not sympathetic. The sacral splanchnic nerves arise from the sacral levels of the spinal cord and primarily supply the pelvic organs. Therefore, the lesser splanchnic nerve is the appropriate choice for innervation at the T10-T11 levels.