Uberon definition : The obturator nerve arises from the ventral divisions of the second, third, and fourth
lumbar nerves; the branch from the third is the largest, while that from the second
is often very small.;
The obturator nerve arises from the ventral divisions of the second, third, and fourth
lumbar nerves; the branch from the third is the largest, while that from the second
is often very small.