Chapter 8, Problem I8CRE

Place the following steps in order for motor control.1. Upper motor neurons stimulate lower motor neurons.2. Sensory information is relayed back to the cerebellum so movement can be modified if needed.3. Upper motor neurons in the premotor cortex select a motor program.4. Lower motor neurons stimulate a skeletal muscle to contract.5. The basal nuclei enable the thalamus to stimulate upper motor neurons of the primary cortex." a. 5, 3, 1, 4, 2 b. 3, 5, 1, 4, 2 c. 3, 5, 1, 2, 4 d. 2, 5, 3, 1, 4"

Mark the following statements on the role of the brain in movement as true or false. If a statement is false, correct it to make a true statement. a. The dopaminergic neurons of the substantia nigra enhance the actions of the caudate nucleus and putamen. b. The cerebellum monitors the initiation of movement but does not monitor ongoing movements. c. The basal nuclei inhibit inappropriate movements and are required for the initiation of movement. d. The correction of motor error by the cerebellum can occur over the long term by motor learning

Upper motor neuron damage:   Results in activation of the extensor reflex Results in activation of the fight or flight response Results in weakness that becomes spasticity Results in spasticity that becomes flaccidity