Test 3 Review

This system contains the brain and spinal cord.

• Peripheral Nervous System

• Central Nervous System

• Basal Ganglia

• Indirect Pathways of Motor Control

These areas are involved in the planning, generation, and internal guidance of movement (organizing the sequence of muscle movements)

• Broca's and Wernicke's areas

• corpus callosum and brainstem

• parietal and premotor cortex

• supplementary motor area and premotor cortex

This part of the neuron has receptors for detecting neurotransmitters.

• Axon

• Soma

• Myelin

• Dendrite

When a critical threshold of depolarization is met in the cell body, an impulse is triggered known as the...

• glial impulse

• excitation

• action potential

• nodes of ranvier

This white insulation covers axons and facilitates movement of the action potential

• Oligodendroglia

• Dendrite

• Myelin

• Golgi body

Where in the cerebral cortex do upper motor neurons originate from?

• precentral gyrus

• postcentral gyrus

• prefrontal cortex

• central sulcus

This is where axons from the upper motor neurons of the corticobulbar tract will terminate.

• frontal lobe

• brainstem

• spinal cord

• cerebellum

Which cranial nerve is involved in jaw movement?

• Olfactory (I)

• Trochlear (IV)

• Trigeminal (V)

• Facial (VII)

Which cranial nerve controls the intrinsic muscles of the tongue?

• Trigeminal (V)

• Glossopharyngeal (IX)

• Vagus (X)

• Hypoglossal (XII)

True or False: Most cranial nerves receive bilateral innervation from the upper motor neurons.

• True

• False