Identify the items above plus the items on the following list for the spinal cord model: T) 1. The spinal cord is divided into equal right and left halves by two indentations: an indentation on the: dorsal aspect, called the aspect, called the and an indentation on the ventral 2. The space in the center of the spinal cord is called the and is filled with 3. The matter of the spinal cord is organized into three regions called horns. 3. The horn contains the somas of autonomic motor neurons. 4. The horn contains the somas of somatic motor neurons. 5. The horn contains the somas of interneurons as well as the axons of sensory neurons. 6. Which neurons belong to the afferent pathway? 7. Which neurons belong to the efferent pathway?.