Final answer:
The dorsal horn of gray matter in the spinal cord contains sensory neurons, interneurons, and glial cells, but not motor neurons or blood vessels.
Step-by-step explanation:
The dorsal horn of gray matter in the spinal cord contains sensory neurons, in addition to other components such as interneurons and glial cells. Motor neurons, on the other hand, are primarily located in the ventral horn of the gray matter. Interneurons play a crucial role in connecting sensory and motor neurons within the spinal cord. Glial cells provide structural support and insulation to the neurons. Blood vessels, however, are not typically found in the gray matter of the spinal cord.