The cervical region of the spinal cord lacks associated autonomic nuclei. How will a cross section of the spinal cord in this region differ from a cross section of the thoracic region?
A) Lateral gray horns are not present in the cervical region.
B) Ventral gray horns are smaller in the cervical region due to fewer motor nuclei.
C) Posterior gray horns are lacking in the cervical region.
D) There should be no difference in the appearance from one region compared to other regions.

Question

Quizplus · Accepted Answer

Lateral gray horns, which contain autonomic motor nuclei, are present in the thoracic and upper lumbar regions of the spinal cord but not in the cervical region.

The Cervical Region of the Spinal Cord Lacks Associated Autonomic