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) 3, 5, 1, 2, 4

B) 2, 5, 3, 1, 4

C) 3, 5, 1, 4, 2

D) 5, 3, 1, 4, 2

3, 5, 1, 4, 2.

Explanation:

Neurons are the structural and the functional unit of the nervous system. Two main types of neurons on the basis of their function are sensory neurons and motor neurons.

The motor control in order body occurs in a sequential step. The motor program is selected by the pre motor cortex. This neuron is further stimulated by basal nuclei of the thalamus. This further stimulate the lower motor neuron. This causes the contraction in the skeletal muscle. This information is further move to cerebellum if movement is required.

Thus, the correct order is 3, 5, 1, 4, 2.