Which spinal cord tract carries voluntary motor commands from the left cerebral cortex to the muscles on the left side of the trunk and the proximal parts of the left limbs

The image below shows a common blood pressure gauge. what does this device do? a. measures the level of oxygen present in the blood b. measures the pressure of blood when the lungs expand and compress c. measures the electrical activity of the heart d. measures the pressure of blood when the heart contracts and relaxes