Myelination works by providing a faster medium (fatty material) for the transmission of electrical impulses than could otherwise be achieved. While not present on all nerve fibers, myelinated nerves are found throughout the body.

The presence of dopamine in excess causes the classic symptoms of agitation, which can include inattention, aggressiveness, inability to focus the eyes, and in severe cases muscle tremors or spasms. In severe cases of dopamine limitation, paralysis, torporous aspect and even death can occur.

The vesicles, located in the synaptic knob, also help with the resorption of used neurotransmitters during the reuptake phase.

Association areas, such as Broca's area, are involved in "higher" brain processes such as pattern recognition, speaking, thinking and memory.

Neuroplasticity replaced the former "static organ" model of brain functioning through recognition that in response to changes in behavior, environment, or even injury to the brain, the brain's functions, structure and shape can change. This plasticity occurs at both the synaptic and non-synaptic levels.

The limbic system is composed of the septum, cingulate gyrus, hypothalamus, and amygdala, plus other more minor formations. This system is particularly associated with the formation of memory.

All of the answers lead to regulation of neurotransmitters in the brain, thus leading to regulation of neural impulses. A combination of releasing inhibitory and excitatory neurotransmitters and also removing them from the synapses leads to the diverse neural impulses in the brain.

The autonomic nervous system is made up of nerves that connect to the heart, blood vessels, smooth muscles, and glands. The autonomic nervous system controls automatic and involuntary physiological arousals that occur when people experience emotions. In this case, Angie is experiencing a lot of fear or other emotions due to the break in and her autonomic nervous system is hijacking her body, preparing her for a possible fight or flight situation. 

Like the autonomic nervous system, the somatic nervous system is part of the peripheral nervous system; however, its function is for voluntary skeletal muscles and sensory receptors. The central nervous system consists of the brain and spinal cord, but doesn't include the peripheral nerves that made Angie react the way she did. The basic nervous system is not a real system. 

Research has shown that different parts of the brain handle different tasks. Typically, the right hemisphere of the brain handles most visual-spatial functions while the left hemisphere handles language. Exceptions to this rule are when a person is born or develops some sort of brain abnormality or damage. In this case, the brain often adapts so that one hemisphere takes over the job of the other one. 

The corpus callosum is a large band of fibers that relays signals between the two hemispheres of the brain.