Identify the location of the central canal in the spinal cord slide.

pic: cross section of a spinal cord with four labels. label a is on the area surrounding the dorsal and ventral horn, label b is on the purple shaded area inside the dorsal and ventral horn, label c is on the dorsal root, and label d is on the opening in the middle of the cross section.

What is a difference between systemic and pulmonary circulation? a. systemic circulation carries oxygenated blood to the lungs and pulmonary circulation carries deoxygenated blood to the body. b. systemic circulation carries deoxygenated blood to the lungs and pulmonary circulation carries oxygenated blood to the body. c. systemic circulation carries deoxygenated blood to the body and pulmonary circulation carries oxygenated blood to the lungs. d. systemic circulation carries oxygenated blood to the body and pulmonary circulation carries deoxygenated blood to the lungs.