COMAT Surgery Test 2026 – 400 Free Practice Questions to Pass the Exam

The viscerosomatic reflex for the stomach involves spinal segments T5 to T10, specifically on the left side. This is because these segments correspond to the sympathetic innervation of the stomach, which is innervated predominantly by the greater splanchnic nerve arising from these thoracic segments.

In clinical practice, understanding the spinal segments associated with specific organs is crucial for diagnosing and treating conditions involving referred pain or autonomic dysfunction. The stomach is primarily influenced by the T5 to T10 segments, and thus, in a viscerosomatic reflex, stimuli from the stomach can evoke somatic responses through these spinal segments.

The other options do not correctly represent the specific spinal segments related to the stomach's viscerosomatic reflex: the thoracic segments T1-T4 are associated with the upper extremities and parts of the neck; L1-L3 corresponds primarily to lower abdominal organs and some pelvic structures; and C5-C7 are mainly related to the upper limbs and diaphragm rather than the stomach itself. Therefore, the correct association for the stomach's viscerosomatic reflex is indeed T5 to T10 on the left side.