Peripheral and Central Nervous System Graphic Organizer

Peripheral Nervous System
The peripheral nervous system is made up of two parts the parasympathetic and sympathetic nervous systems. The PNS is divided into two sections: an Autonomic Division, , and a Somatic Division, which controls striated muscles (voluntary), which are the skeletal muscles. / Central Nervous System
The central nervous system is made up of the brain and the spine.
Somatic :
Send sensory information to the central nervous system AND motor nerve fibers that project to skeletal muscle. / Autonomic: which controls smooth muscles (involuntary), such as the stomach and heart / Brain: The brain is the main data center of the body, consisting of thecerebrum(which regulates higher-level functioning such as thought) and thecerebellum(which maintains coordination).
Spinal Cord: A thick, whitish cord of nerve tissue that is a major part of the central nervous system. It extends from the brain stem through the spine, with nerves branching off to various parts of the body.
Sympathetic:
“Fight or Flight” / Parasympathetic:
“Digest and Rest”
Function:
The cell body is located in either the brain or spinal cord and projects directly to a skeletal muscle / Function:
◦  Diverts energy away from sustaining activities
◦  Instead, mobilizes the delivery of oxygen (via the blood) to the extremities and brain
◦  Increases responsiveness / Function:
◦  Maintains bodily functions such as digestion and blood flow at a balanced level
◦  Maintains homeostasis / Function:
The brain communicates its behavior to the PNS by way of the spinal cord. In cases of very quick reflexes, such as pain response, the PNS-spinal cord-PNS pathway is invoked without first processing information in the brain (e.g., knee jerk response).
Example:
The muscles we have control over. Movement of any muscle you can physically operate. / Example:
Can accelerate heart rate, widen bronchial passages, decrease motility of the large intestine, constrict blood vessels, increase peristalsis in the esophagus, perspiration (sweating), and raise blood pressure. / Example:
Rest and Digest
Pupil constriction, saliva production increased, mucus production increased, heart rate and force decreased, digestion increased. Save energy / Example:
The CNS gets to decide what muscles fire, how strong and fast they are, how far they will elongate, what motor patterns and postures you adopt, and whether you will experience pain – in short, everything that matters.