Which option lists the nerves that innervate the internal oblique muscle?

Which option lists the nerves that innervate the internal oblique muscle?

• A. Iliohypogastric nerve
• B. Ilioinguinal nerve
• C. Subcostal nerve
• D. Iliohypogastric nerve and ilioinguinal nerve

Answer: (D)

The nerves that innervate the internal oblique come from nerves that supply the lower anterior abdominal wall, specifically the iliohypogastric and ilioinguinal nerves. These two nerves arise from L1 and travel between the internal oblique and transversus abdominis, giving motor fibers to the internal oblique (as well as the transversus abdominis) and providing sensory fibers to the groin region. While other nerves like the subcostal or lower intercostal branches contribute to the region, the iliohypogastric and ilioinguinal nerves together are the ones most consistently responsible for the motor innervation of the internal oblique, which is why they’re listed as the correct pair.

The nerves that innervate the internal oblique come from nerves that supply the lower anterior abdominal wall, specifically the iliohypogastric and ilioinguinal nerves. These two nerves arise from L1 and travel between the internal oblique and transversus abdominis, giving motor fibers to the internal oblique (as well as the transversus abdominis) and providing sensory fibers to the groin region. While other nerves like the subcostal or lower intercostal branches contribute to the region, the iliohypogastric and ilioinguinal nerves together are the ones most consistently responsible for the motor innervation of the internal oblique, which is why they’re listed as the correct pair.