illness (this will be dealt with later in the booklet…). The Body’s Response to Stressors There are two parts to the physical (or psychological) stress response system: 1. The Hypothalamic-Pituitary-Adrenal System (HPA) 2. The Sympathetic-Adrenal-Medullary Pathway (SAM) AO1: The Hypothalamic-Pituitary-Adrenal System (HPA) Some stressful experiences last for a long time‚ such as worrying about exams for months
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AND BEHAVIOR Objective II.1 Identify the basic components of the neuron. Key Terms neuron dendrites axon cell body (soma) Exercises 1. What is a neuron? Neurons are individual cells in the nervous system that receive‚ integrate‚ and transmit information 2. Label each part of the neuron. 1.Soma 2.Dendrites 3.Myelin sheath 4.Axon [pic] Objective II.2 Define action potential‚ and explain
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from most simple to most complex. Cells‚ tissues‚ organs‚ organ systems 2. Define the term “homeostasis”. The tendency of the body to maintain a relatively constant internal environment. 3. What does the term “feedback system” refer to with respect to homeostasis? A cycle of events in which a variable‚ such as body temperature‚ is continually monitored‚ assessed‚ and adjusted. 4. List the three components of a feedback system and describe each briefly. A sensor that detects a change in
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they function. Module eight contains information about the nervous system and the endocrine system‚ and it also explains how the body communicates from within. Module nine is the last module and contains information on the brain. The different parts and functions of the brain are also found in module nine. Module 7 Neurons are the most basic elements of the nervous system. They are tasked with relaying messages from the central nervous system. Neurons are a web that connect from your brain and spinal
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abdomen‚ with branches in the neck‚ thorax and abdomen 68. The vagus nerve is part of the autonomic nervous system‚ has efferent fibers‚ ascending signals from the brain to the peripheral organs‚ as well as afferent sensory fibers‚ and transmits information from the peripheral tissue to the brain. The ANS consists of three components: the sympathetic‚ noradrenergic and parasympathetic‚ cholinergic systems that occur in the CNS‚ with the cell body in the brainstem and spinal cord and ENS 68. The vagus
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HYPONATRAEMIA IN THE NEUROSURGICAL PATIENT INTRODUCTION Sodium the most abundant electrolyte in the human body‚ and therefore the osmolality of body fluids is strongly dependent on its concentration. Osmolality in turn is important in maintaining homeostasis within the brain. Ironically‚ dysfunction of the brain can cause changes in sodium homeostasis. To avoid neurological deterioration‚ morbidity or mortality the sodium level must be corrected promptly. The two most common causes of hyponatraemia
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-Morphine- agonist Difference with Somatic and Autonomic nervous system (Peripheral ) Somatic Nervous System Made up of nerves that connect to voluntary skeletal muscles and to sensory receptors. -Consists of neurons that communicate between the body and the brain Peripheral Nervous System Made up of all those nerves that lie outside the brain and spinal cord. Difference between afferent and efferent neurons (Somatic Nervous System) Efferent Neurons -Motor neurons -Neurons that carry messages
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of an individual‚ but also their biology. The Biological foundation of Psychology involves the electrical and chemical processes in the nervous system that cause us to feel‚ have fears‚ and develop thoughts. There are many biological factors that can influence psychological functioning. From the neuron to the different parts of the nervous system‚ each can impact mental processes and behavior. Genetics and evolution can also influence psychological functioning. Genetics and evolution
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sweating and that his mouth was dry before the raise began. Explain what is happening to his autonomic nervous system (including which division is the most active) and specify exactly how those ANS responses are creating the symptoms noted. What changes do you think are occurring in the digestive and urinary systems at this time? (8 points) In his autonomic nervous system‚ the sympathetic division was the most active before and during the race because it is what prepares your body for extra somatic
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dendrites. d. can close the synaptic gap. Question 4 The resting potential is_____________. Select one: a. the length of time that a neuron is incapable of activating after an action potential. b. the term used to describe how the sympathetic nervous system reduces c. when a neuron is not firing. d. more prevalent in left-handed people who display right-hemisphere language abilities. Question 5 Question text During the action potential_____________. Select one: a. the electrical
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