The nervous system is broken down into two major systems: Central Nervous System and Peripheral Nervous System. We’ll discuss the Central Nervous System first.
The Central Nervous System consists of the brain and the spinal cord. The Cerebral Cortex, which is involved in a variety of higher cognitive, emotional, sensory, and motor functions is more developed in humans than any other animal. It is what we see when we picture a human brain, the gray matter with a multitude of folds covering the cerebrum. The brain is divided into two symmetrical hemispheres: left (language, the ‘rational’ half of the brain, associated with analytical thinking and logical abilities) and right (more involved with musical and artistic abilities). The brain is also divided into four lobes:
o
Frontal –
(motor cortex) motor behavior, expressive language, higher level cognitive processes, and orientation to person, place, time, and situation
o …show more content…
The Somatic Nervous System – primary function is to regulate the actions of the skeletal muscles. Often thought of as mediating voluntary activity. The other sub-system, called the Autonomic Nervous System, regulates primarily involuntary activity such as heart rate, breathing, blood pressure, and digestion. Although these activities are considered involuntary, they can be altered either through specific events or through changing our perceptions about a specific experience. This system is further broken down into two complimentary systems: Sympathetic and Parasympathetic Nervous Systems.
The Sympathetic Nervous System controls what has been called the “Fight or Flight” phenomenon because of its control over the necessary bodily changes needed when we are faced with a situation where we may need to defend ourselves or escape. Imagine walking down a dark street at night by yourself. Suddenly you hear what you suspect are footsteps approaching you rapidly. What
The Central Nervous System consists of the brain and the spinal cord. The Cerebral Cortex, which is involved in a variety of higher cognitive, emotional, sensory, and motor functions is more developed in humans than any other animal. It is what we see when we picture a human brain, the gray matter with a multitude of folds covering the cerebrum. The brain is divided into two symmetrical hemispheres: left (language, the ‘rational’ half of the brain, associated with analytical thinking and logical abilities) and right (more involved with musical and artistic abilities). The brain is also divided into four lobes:
o
Frontal –
(motor cortex) motor behavior, expressive language, higher level cognitive processes, and orientation to person, place, time, and situation
o …show more content…
The Somatic Nervous System – primary function is to regulate the actions of the skeletal muscles. Often thought of as mediating voluntary activity. The other sub-system, called the Autonomic Nervous System, regulates primarily involuntary activity such as heart rate, breathing, blood pressure, and digestion. Although these activities are considered involuntary, they can be altered either through specific events or through changing our perceptions about a specific experience. This system is further broken down into two complimentary systems: Sympathetic and Parasympathetic Nervous Systems.
The Sympathetic Nervous System controls what has been called the “Fight or Flight” phenomenon because of its control over the necessary bodily changes needed when we are faced with a situation where we may need to defend ourselves or escape. Imagine walking down a dark street at night by yourself. Suddenly you hear what you suspect are footsteps approaching you rapidly. What