Adrenergic medications affect the four receptors‚ a1‚ a2‚ B1 and B2. The sympathetic nervous system triggers the secretion of epinephrine and norepinephrine. Epinephrine is a hormone and norepinephrine functions as a hormone and neurotransmitter. First we will take a look at the Alpha 1 receptors. These Alpha 1 receptors cause vasoconstriction of vascular smooth muscles. They are located on the post synaptic membranes of effector organs‚ such as on gastral and urinary sphincters. Some are located
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Report:Nervous System Please fill out this report and submit it to the dropbox. Do not hand in your own form. It will not be graded and you will receive a zero for the lab. You must get all parts correct to get credit for the question * Please note that although you do not hand in items in observations‚ it is very important to do these as you may see some of these items on future/associated lab quizzes or be asked about some of these concepts on unit assignments. Step 1: Nervous Slides Assignment
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with a sensory experience. This begins when the sensory receptors receive energy from a particular stimulus‚ which trigger receptor cells. The physical energy is converted into electrochemicals‚ then passes along sensory nerves‚ to the central nervous system where the brain receives the energy as a detailed message. However‚ not all physical energy produces a sensation. A minimum intensity‚ termed absolute threshold‚ must be achieved in order to produce a sensation. Perception takes place when the
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Chapter One↬ Humanism: Potential‚ Carl Rogers‚ Abraham Maslow Psychodynamic: Sigmund Freud‚ Unconscious‚ Repressed Memories Behaviorism: B.F. Skinner‚ Ivan Pavlov‚ John Watson‚ Environment‚ Reinforcement Cognitive: Thoughts‚ Internal Sentences Biopsychology: Hormones‚ Neurotransmitters Socio-Cultural: Religion‚ Race‚ Environment Wilhelm Wundt: First Psychology Lab‚ Structuralism‚ Introspection Eclecticism: Combination Approach‚ Multiple Perspective Gestalt: Whole Person‚ Max Wertheimer
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—Family studies -close vs. distant relatives vs. non-family members —Twin studies -identical vs. fraternal —Adoption studies -adopted vs. biological family II. Neural Basis of Behavior (Brain) Neural Bases of Psychology -Our nervous system consists of neurons. —cells responsible for receiving & conducting electrical impulses from the brain The Structure of a Neuron Dendrites: (antennas) that receive signals Nucleus: (eyeball) cell body w/ DNA‚ source of signals dendrites
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considered a transmitter. These four steps include the synthesis of a transmitter substance‚ the storage and release of the substance‚ its interaction with a receptor in the membrane‚ and the removal of the transmitter form the synaptic cleft. The nervous system makes use of two types of neurotransmitters: small-molecule transmitters (acetylcholine‚ amines and A.A) and neuroactive transmitters(peptides) 2. Neurons have developed a sophisticated ability to regulate the synthesis‚ storage‚ release‚ and
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Sensory neurons send information from the body’s tissues and sensory organs inward to the brain and spinal cord‚ which process the information. Motor neurons carry outgoing information from the central nervous system to the body’s tissues.Interneurons in the central nervous system communicate internally and intervene between the sensory inputs and the motor outputs. The axons of some neurons are encased by a myelin sheath‚ which helps speed their impulses. A neural impulse‚ or action
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Chapter 1 1. Correct Psychology is the study of behavior andYour answer: mental processes. 2. Correct The processes involved in learning‚ memory‚ sensation‚ perception‚ and cognition are investigated by which type of psychologists?Your answer: experimental 3. Correct The scientific method isYour answer: an approach to gaining knowledge that relies on collecting data and hypothesis testing. 4. Correct Which of the following is NOT one of the enduring issues in psychology?Your answer: the
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Chapter I Introduction to Psychology Wilhelm Wundt Psychology started as a branch of philosophy in 300 B.C. with the great precursors like Plato‚ Aristotle‚ Socrates‚ St. Augustine and etc. The first psychological laboratory was established by Wilhelm Wundt in Leipzig‚ Germany and He made himself the “father of experimental psychology”. Psychology is the scientific study of behaviour and mental processes. Behaviour is anything that a person or animal does‚ feels‚ thinks or experiences
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Acute Stress – Sympatho- Adreno- Medullary Pathway 1. Hypothalamus * Sends a signal to the sympathetic ganglia 2. Sympathetic Ganglia * Connected to internal organs * Activates the Adrenal Medulla. 3. Adrenal Medulla * Releases Adrenaline and Noradrenalin into the blood stream. * Prepares the body for fight or flight mode. Stress as a Bodily Response Stress if the lack of fit between the individual and their environment. What are the signs of stress
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