1. TTX blocks the diffusion of sodium through the voltage-gated Na+ channels. 2. Lidocaine blocks the diffusion of Na+ through the voltage-gated channels. 3. With a compound action potential‚ the results would not necessarily be zero because some axons could remain unaffected. 4. TTX blocked the Na+ channels which prevented the propagation of the action potential from R1 to R2. 5. Lidocaine blocks the Na+ channels which prevents the propagation of the action potential from R1 to R2. 6. Lidocaine
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of information. 4) The more detailed your answers are‚ the more points you will accumulate. Be able to answer the following questions to the best of your ability: 1) Describe (in your own words) how an action potential is transmitted from the axon terminal (pre-synaptic membrane) to an excited muscle (post-synaptic membrane). Be sure to include all electrolytes (minerals) and neurotransmitters that are used for the transmission of the action potential. Optional drawings can be included. 2)
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Unit 5 Biology notes Contents Section 9.1 – Sensory Reception 3 Section 9.2 – Nervous Control 4 Section 9.3 – Control of heart rate 5 Section 9.4 – Role of receptors 6 Section 10.1 – Coordination 8 Section 10.2 – Neurons 10 Section 10.3 – The nerve impulse 11 Section 10.5 – The speed of a nerve impulse 12 Section 10.6/10.7 – Structure and function of the synapse / Transmission across
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CHAPTER 1 What is Psychology? Psychology is the science of behavior and mental processes Thinking critically with Psychology Hindsight bias- Common Sense describes what has happened after the fact more easily than it predicts what will happen before the fact Common sense is a poor guide The Scientific Method Theory- an explanation using an integrated set of principles that organizes observations Hypothesis- a testable prediction implied by a theory Simple Observation- simply observing
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Our brains change as we age. Many of us notice slower thinking and problems with recalling certain events as we grow older; nonetheless‚ confusion‚ memory loss and other key changes in how our minds work may be a sign that brain cells are failing. Many people confuse Alzheimer’s disease with dementia. Dementia is a set of symptoms that include problem solving‚ reasoning skills and memory loss while Alzheimer’s disease is a progressive disorder that is usually characterized by considerable dysfunctions
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PSY 230 OL Lecture Study Guides for Module 1 M1 L1 Respond to the following study guide items from lecture 1. What is the area of study involved in Abnormal psychology? a. Concerned with understanding the nature of causes and treatment of mental disorder b. No universal agreement c. People typically compare others behavior to their own 2. List 7 characteristic often associated with behavior that is considered abnormal. a. Suffering: someone experiences physical or emotional pain and discomfort
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Huntington’s Disease Haley Hamilton January 4th‚ 2017 Honors Biology 3&4 The World in the eyes of everyday people do not see what awful things that are taking place in those around them. Huntington’s disease is a fatal illness in which those who develop this have no chance of survival. The disease deteriorates one’s ability to function properly and their way of living. Not only does the disease harm the sufferer but it also affects the people around them as well‚ too. For‚ these people are
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Chapter 1 *Goals of psychology: 1. Description of behaviors- classifying & labeling behavior‚ 2. Understanding-Understanding the causes and why they occur‚ 3. Prediction-Accurately saying what may say in the future‚ 4 Control-Altering conditions to positively influence behavior.‚ psychology-the scientific study of behavior and mental processes-behavior(Overt) & mental processes (covert)‚ many research projects in psych begin with observations in real life *Pseudopsychology-Any unfounded “system”
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functioning of the nervous system? a. ideals‚ thoughts‚ and plans c. behaviors‚ emotions‚ and cognitions b. imagery and cognitions d. all of these ANS: D DIF: 2 REF: 2-26 OBJ: 1 MSC: TYPE: Conceptual 2. A(n) _________ is a nerve cell. a. axon c. dendrite b. neuron d. glial cell ANS: B DIF: 1 REF: 2-26 OBJ: 1 MSC: TYPE: Factual NOT: BTC 3. ________ remove dead neurons and waste products from the nervous system‚ nourish and insulate neurons‚ and direct their growth. a.
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THE MUSCULAR SYSTEM DocPoks Pangan M.D Natural Science • The bones‚ muscles and joints together form an integrated system called the Musculoskeletal System • Myology is the scientific study of muscles • Muscular system is an organ system consisting of skeletal‚ smooth and cardiac muscles • Orthopedics is the branch of medical science concerned with the prevention or correction of the disorders of the musculoskeletal system ANTERIOR VIEW POSTERIOR VIEW FUNCTIONS OF THE MUSCLES • • • • Movement
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