Nervous System Essay

later won a Nobel Prize for his findings (Boeree). Acetylcholine is present in both inhibitory functions as well as excitatory functions, which means that it can both speed up and slow down nerve signals (“Acetylcholine”). Its role in the central nervous system is excitatory, and plays a role in arousal, learning, memory, and neuroplasticity. Other functions include engaging functions such as waking, help sustain focus, maintain rapid eye movement

It is also believed by biologists that depression may be an inherited condition passed down in the genes. However traumatic events are also known to affect the nervous system and can cause these biological differences. In some cases it may be to do with inheritance/biology, but it can also be to do with people being exposed to certain levels of stress, traumatic events and differing life

Olfaction And Pheromones What is Olfaction? Olfaction is another word or a synonym used for the ability to smell or smell that anything carries with itself. It is by far one of the oldest senses that human and animals have carried likewise for ages. It allows organisms to identify food, as well allows them to copulate and evade the threat and danger posed by other predators besides providing sensual as well as warnings of danger pleasure. For both humans and animals, it is one of the important means

concentration of acid in the stomach and may cause heartburn or an upset stomach. Rapid or irregular heartbeats and breathing difficulties could also be due to an overdose. (Sagon, 2013) The function of caffeine is to stimulate or excite the brain and nervous system, thus many people drink coffee to make themselves feel more awake and energetic. After

spinal cord begin to develop, laying the framework for some of the most essential structures for human life. One week later, at week 6 gestation, the brain begins to form into 5 separate sections and spine tissue grows more rapidly. At week 27 the nervous system is so developed, it is able to control certain functions of the body. Once the brain is formed it processes information by way of neurons. Neurons are specialized cells that

Prolonged or frequent exposure to stress can be detrimental to a person 's health. It is important to get counseling for stress management before it becomes chronic or life threatening. Psychoneuroimmunology (PNI) is study of the ways the immune and nervous systems interact with each other and impact mental and emotional health. PNI research suggests that chronic stress can cause mood disorders such as depression and anxiety, personality changes, and problem behavior. Byproducts of stress can act as sedatives

The sympathetic noradrenergic system plays major roles in tonic and reflexive changes in cardiovascular tone. Adrenaline is a major determinant of responses to metabolic or global challenges to homeostasis. Adrenaline responses to stressors are more closely linked to responses of the hypothalamic‐pituitary‐adrenocortical system than of the sympathetic nervous system. The sympathetic noradrenergic system is active even when the individual is at rest and maintains tonic levels of cardiovascular performance

It has been many argument considering the food addiction and it effect on an individual health. Food is necessary for the life and our body need the nutrient to produce energy and do everyday activity. Since we are talking about food addiction and health problem in our society; the first thing come to the mind is the obesity problem that is big issue in our society. Some researchers pose the question about obesity and tried to figure out if the obesity is caused by the process of food addiction that

understanding the mechanisms of diseases, many disorders cannot be linked to a specific cause. Guillain - Barré syndrome is currently identified as an idiopathic autoimmune disorder which can cause ascen ding paralysis to include the central nervous system. Similarities of incidence of Guillain Barré syndrome were observed in the 1800’s giving this disease a significant spot in medical history. However, there is still a substantial lack of understanding th e disease but progressive improvements

harmful effects of marijuana, physicians should not be given the power to distribute the substance. Medical marijuana should not be given as a form of medicine in the United States because of the drugs negative effects to the body, the central nervous system, and one’s physical health. Also research has proven that the drug is known to be abused by individuals around the country who have been given access. Medical marijuana has many negative effects to different parts of the human body. Although the