Exam 8: Motor and Regulatory Systems

It is critical for muscles to contract quickly when activated. What feature(s) of muscles help increase the speed of excitation-contraction coupling?

If you support the posture of a person who has had a spinal cord injury, you can get the person to generate alternating contractions of opposing muscles in the left and right leg with spinal stimulation or administration of particular drugs to the spine. In very general terms, why is this possible?

Dopamine has opposing effects on the direct and indirect pathway in the basal ganglia. How is this possible?

After your exam, you go home and lay on the couch and eat some popcorn. Which division of the autonomic nervous system is most active and what would happen to your heart rate and digestion?

If you wanted to remove the influence of the cerebellum on motor control, what area of the brain could you remove without removing the entire cerebellum?