A car is parked on a hill. In order to keep the car from rolling downhill‚ how great must the static friction acting on the car be? (Hint: Picture each scenario in your mind) equal to the force pulling the car downhill The object is experiencing some kind of friction A force is continuously applied to an object‚ causing it to accelerate. After a period of time‚ however‚ the object stops accelerating. What conclusion can be drawn? A tug-of-war that results in one team pulling the other across
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January 30‚ 2014 Nervous Tissue ! Anatomy & Physiology - Overall Purpose of the Nervous System ! • To keep controlled conditions within limits that maintain life health and homeostasis ! - Regulates body activities by responding via nerve impulses‚ works with the endocrine system which responds by releasing hormones ! • Responsible for our behavior‚ memories‚ and movements ! • Neurology : branch of medicine that deals with normal functioning and disorders of the nervous system ! -
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was no way for Maubee too know he would have to give the money up soon. Therefore it is safe to assume he did not know the American’s where on their way to place the snake in the sack. Maubee does this on impulse while Quinn has a gun to his head. All of Maubees choices where also based on impulse because of the money he
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This page is intentionally left blank. The Universe is Only Spacetime Particles‚ Fields and Forces Derived from the Simplest Starting Assumption John A. Macken Santa Rosa‚ California john@onlyspacetime.com Original Draft – February 2010 Revision 7.0 – January 2013 ©2010‚ 2012 i Dedication: I dedicate this book to my wife‚ Enid‚ who has encouraged me and tolerated my idiosyncrasies over the years. Acknowledgments:
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communication and signaling * Neurocrene * 10 billion neurons in nervous system * Once they degenerate they don’t usually go REGENERATION Neuroglia * Nerve glue * Supportive cells * 10x greater of your neurons * Not involve in impulse transmission (they can influence synaptic transmission) * Sustain neuron both physically and metabolically * Includes * Microglia – scavengers; cell that removes debris and cellular product from damage cells * Oligodendrocytes
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This is stored in the axon. An electrical impulse starts in the neuron. The charge is sent down the axon and this is how it starts. A neuron has three basic parts: the body or soma‚ the axon and the dendrites. The Cell body is the center for sending and receiving impulses. The axon is a tube like extension of a neuron. Axons extended can be up to 3 feet long (psychology textbook). Nerves are actually bundles of axons. Axon receives the impulse from the cell body and passes it on to the next
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friend and test the patellar reflex. a. Which muscle contracted? The muscle that contracted is the quadriceps. b. What nerve is carrying the afferent impulse? The nerve that is carrying the afferent impulse is the sensory nerve of the femoral nerve. c. What nerve is carrying the efferent impulse? The nerve that is carrying the efferent impulse is the motor nerve of the femoral nerve. 3. Find a friend and test the plantar flexion reflex. a. Describe the response. The response to this test was
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is still no definite answer‚ only ideas of what it truly means. In Roald Dahl’s perspective of humanity‚ humans are weak willed because they can easily lose to their emotions. People who are weak willed lack the ability to restrain their negative impulses. Nobody is perfect‚ which is why we sometimes act upon what is on our mind unconsciously. When this happens‚ the actions we do are not logical or in other words‚ not what we should have done. The main characters in “The Umbrella Man”‚ “Man from the
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initiated by sinoatrial node inside the heart itself‚ not by nerve impulses from the central nervous system. After exercise‚ the concentration of carbon dioxide in the blood is high‚ meaning that the pH in the blood is low. Chemoreceptors in the carotid arteries and aortic walls detect this change in pH. They increase the frequency of nerve impulses to the centre in the medulla oblongata. The centre increases the frequency of impulses via the sympathetic nervous
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kkkkkkkkk CVEN-3313 Theoretical Fluid Mechanics MODULE#4 : Application of Impact on a Jet 1. OBJECTIVE To use the momentum equation to estimate the force exerted by a jet on a stationary target. 2. THEORY The momentum equation in the vertical (z) direction can be written as: Applying the momentum equation for a control volume including the forces acting on a flat target or hemispherical target gives: (1a : flat) (1b : hemi) It is assumed that the velocity
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