May 12, 2015
Regulation of the human body is accomplished by the nervous system and the functions it executes. The body under average conditions runs smoothly, without any issues; but with the addition of fear into the nervous system, its function may be impacted. Body temperature regulation is an area that may be examined in its relation to the nervous system. Fear, when present brings about the production of hormones that are specific in the causation of certain responses inside of the body leading to a flight or fight scenario and raising the body temperature. Impairment possibilities within any bodily function is possible. Examination of the regulatory impairments directly correlated with the body’s temperature regulation system will be addressed.
The Nervous System
The nervous system is comprised of two parts, the central nervous system and the peripheral nervous system (National Institute of Health, 2013). Each system holds a purpose in our bodily functions. The central nervous system is comprised of the spinal cord and the brain. The peripheral nervous system is the intricate branch-like fibers that reach out off of the spinal column and reach throughout a person’s body; the arms, face, legs, fingers, etc. Without the nervous system information would have no path of communication. The messages that are sent out by the brain are sent through the nervous system through communication with the neurons. Neurons communicate with each other using axons and dendrites. When a neuron receives a message from another neuron, it sends a signal that is electrically charged down the length of its axon. At the end of the axon the electrically charged signal is converted into a chemical message, and the axon lets out these chemical signals called neurotransmitters (National Institute of Health, 2013). This system is how the brain communicates commands such as walking, blinking, talking, and keeping a person’s body temperature regulated. The nervous system communication process regulates all bodily functions.
Temperature Regulation and Fear
The regulation of temperature in the body is a way that the body has a steady internal temperature maintained. This is the thermoregulation process and the hypothalamus is responsible for controlling this process. When properly regulated, the human body holds a normal core temperature of between 97.7 to 99.5 Fahrenheit (Vella & Kravitz, n.d.) Fear can be a definitive causation of body core temperature fluctuations. According to the Juvenile Bipolar Research Foundation (n.d.), children who suffer from higher levels of fear compared to those children who suffer from average levels of fear, have a harder time falling and staying asleep. The regular sleep cycle being disrupted has been proven to affect the thermoregulation processes. Fear causes the overheating of the body and does not let the cooling down happen when needed (Juvenile Bipolar Research Foundation, n.d.). Hormones in Relation to Temperature Regulation
A hormonal reaction is produced when the body experiences fear, just as with any function of the body. When a person encounters a fearful situation, the glucocorticoids found to be produced in the adrenal cortex and the catecholamine hormones that are located in the sympathetic nerves and the adrenal medulla, travel throughout the body and causes a rise in core body temperature and produces the fight or flight experience (Rodrigues, Ledoux, & Sapolsky, 2009). The hormones that are both induced by fear potentially can impair the nervous system. For instance, playing an important part in the central nervous systems functioning are glucocorticoids. If the levels of this hormone stays consistently in the high range anatomical brain changes can occur; these changes are resultant in mood changes, disturbance of sleep, cognitive impairments, and psychiatric disorders (Lacroix, 2014)....
References: Lacroix, A. (2014)._Glucocorticoid effects on the nervous system and behavior_.
Retrieved May 9, 2015, from http://www.uptodate.com/contents/glucocorticoid
National Institute of Health (2013)._What are the parts of the nervous system_?
Retrieved May 9, 2015http://www.nichd.nih.gov/health/topics/neuro/
Hormones on fear circuitry Retrieved May 8, 2015, from http://my psychology
Sessler, D. I. (2008)._Temperature monitoring and perioperative thermoregulation_.
Retrieved May 9, 2015 from http://www.nlm.nih.gov/pubmed/18648241
Synapse (n.d.)._Get the facts-temperature control and dysautonomia_.Retrieved May 8,
Please join StudyMode to read the full document