The Autonomic Nervous System ( Sns ) Division Of The...

Autonomics and Stress Introduction: The autonomic nervous system, which is the division of the central nervous system that is not consciously controlled but regulates bodily functions, is influenced by stress. Stress can be defined as a stimulus that interrupts homeostasis within the body, either physiologically or psychologically. The influence that it has is innovation of the sympathetic nervous system (SNS) division of the ANS, and can include changes to skin conductance, heart rate, blood pressure, skin temperature and respiratory rate1. Under SNS activation, caused by stress, heart rate, skin temperature, respiratory rate, blood pressure and skin conductance will all increase1,2. This experiment aimed to choose a stressor that would influence autonomic measures and record the response. The choice of stressor used in this experiment was invasion of an individual’s personal space, measured via skin conductance and heart rate. There is known to be a linear relationship between discomfort or tension and the inv asion of personal space3 and this experiment aimed to test this response via autonomic parameters. For example the skin conductance measure would indicate sweat; if conductance increases there is less skin resistance due to the increase in sweat from SNS innovation, caused by the stressor1. The cardiovascular responses observed could be due to an inhibition of parasympathetic activity, activation of SNS or a mixture of both2,3. The null hypothesis for this experimentShow MoreRelatedDna Rna And : Dna Replication1735 Words   |  7 Pagesprocess where a cell passed its DNA sequence onto another cell is known as DNA replication. This process usually took place in the S phase cell cycle through mitosis where the copy of DNA molecule are segregated and cytoplasm open up leading to cell division. In order for the process to happen, an enzyme helicase must hack the hydrogen bond where the DNA â€Å"unzip† and â€Å"unwind† to establish two open template. DNA polymerase then replace the RNA primer by adding new complementary nucleotides to the templatesRead MorePathology Of The Autonomic Nervous System2298 Words   |  10 Pagesthe autonomic nervous system. The Autonomic Nervous System The autonomic nervous system (ANS) is the part of the motor division of the peripheral nervous system (PNS) that controls involuntary processes in the body (Wieczorek, 2014). Such functions include control of heart rate, gland activity, smooth muscle contraction and constriction of blood vessels (Biology-online.org, 2014). The ANS is divided into two branches, the sympathetic nervous system (SN) and the parasympathetic nervous system (PN)Read MoreThe Replication Of Cell The Cell Cycle Essay1643 Words   |  7 PagesQuestion 1 a. 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The parasympathetic division promotes maintenance activities and conserve body energy and stimulates calming symptoms as it allows us to rest and digest. The parasympathetic system contractsRead MoreDn Dna And Dna1683 Words   |  7 Pagesanaemia. Question 2 a) The autonomic nervous system (ANS) is the part of the peripheral nervous system that controls visceral functions which occur below the level of consciousness. The ANS can be subdivided into the parasympathetic nervous system (PSNS) and the sympathetic nervous system (SNS). The parasympathetic division promotes maintenance activities and conserves body energy and stimulates calming symptoms as it allows us to rest and digest. The system constricts our pupils, increasesRead Moreanatomy 11.21575 Words   |  7 PagesReview your lecture notes ANS Define: denervation hypersensitivity, ganglia, mass activation, sympathoadrenal system, dual innervation. What are the two divisions of the ANS? 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When the body is stressed, the SNS generates the natural stress responses and signals the adrenal glandsRead MoreAutonomic Nervous System2204 Words   |  9 PagesThe two divisions of the autonomic nervous system (ANS), sympathetic (SNS) and parasympathetic (PNS), function in a complementary and integrated manner to maintain homeostasis. The output of the autonomic nervous system is quick in comparison to the endocrine system functions. In most cases, these systems have opposite effects, where one initiates a physiological response and the other inhibits. The nerves of this system regulate vital internal functions which are generally performed without c onscious