Parasympathetic nervous system

After all of Aaron’s own problems he still persevered in the end. It was quite a nice surprise when Aaron noticed someone was at the door, he cautiously opened it to find Sullivan standing there. Sullivan returned because Aaron sent a letter to the relatives explaining some health concerns and to send Sullivan back. While Sullivan and Aaron were sitting having lunch, there was a rattle at the door, and in came Mr. Kurlander to come tell the boys of the great news about making $68 a month and…

Grief. Complicated grief is prolonged grief, which can affect more than the emotional part of your brain. With complicated grief, any memory of the lossed one can cause grief, but also pleasure. The nucleus accumbens, which is in charge of the reward system and social attachment, is affected in complicated grief. Because of that, grief can be pleasurable. By making grief a pleasure, it's now harder for individuals with complicated grief to move on and get their mental health back because they…

A lot of what makes us up as people consists of neurons. Neurons are responsible for our bodies “communication system.” So much happens within our bodies at such a minuscule amount of time, and learning about the process made me realize how much needs to happen for me to feel a certain way or perform a certain action. In a neuron, it first has to have a certain amount of depolarizing ions for there to be an action potential. When that action potential is reached, charge can be sent through the…

Stressed lifestyle and personality are some of the psychological factors that influence health and behaviour in our lives. However, our response to stressors determines our ability to control and manage or develop illness out of the stress. “Stress is experienced when a person’s perceived environmental, social, and physical demands exceed their perceived ability to cope, particularly when these demands are seen as endangering the person’s well-being in some way” (Cardwell & Flanagan, 2012).…

ganglion by preganglionic parasympathetic fibers to innervate ciliary muscles, and sphincter pupillae muscles. The general visceral efferent fibers allow the pupils to constrict, and shape the lens by the ciliary bodies (Drake, Mitchell, & Vogl 2012). Colette will not have dry eye due to third nerve palsy because dry eye correlates with ophthalmic nerve, V1, first branch off the trigeminal nerve, and facial nerve, cranial nerve VII. If there is impairment to parasympathetic fibers of the facial…

mechanism in the nervous system. In contrast to the neuromatrix pain theory, the pain gate theory offers another explanation…

The central nervous system is crucial to human function; it consists of the brain, spinal cord and a network of nerves moving to the rest of our body. It controls everything in the body e.g. emotions, senses, responses, reactions, body balance like temperature and heartbeat as well as movement of our muscles and glands. The CNS (Central nervous system) covers the brain and spinal cord where the PNS (Peripheral nervous system) is made up of the nerve fibre’s that branch off from the spinal cord…

I believe the first thing your body will do is hear the phone ring, which is a disruption in activity. So, the sympathetic nervous system will kick into alert. The pupil will dilate to allow the person to see more, the heart rate will increase so the blood will be supplied to areas that needs the glucose and use it for energy in case any muscles need to be contracted for moving. Then the person look at the phone after hearing a sound, the cones and rods in the retina will send a signal to the…

Abstract The nervous system is a vital part of our body. Without the nervous system our body would have no control over it functions and how to perform properly. Each component must work together to achieve each task no matter how big or small the task is. Just think about it for a second, the smallest movement requires the use of muscles, bones, and neurons which pass information to the central nervous system of the brain. In writing this paper, I will discuss the role of the nervous system,…

Pathogenic Mechanism of Alzheimer’s disease The pathophysiology of Alzheimer’s disease is complex, involving several neurotransmitter systems and pathophysiologic process. The three hall marks of Alzheimer’s disease are the presence of neuritic (senile) plaques, neurofibrillary tangles, and amyloid angiopathy (Grossman & Porth, 2014). The neuritic plaques are patches or flat areas composed of clusters of degenerating nerve terminals arranged around a central amyloid core. The amyloid core has…