What makes a neuron different from other cells? What is plasticity? The NERVOUS SYSTEM 28 What are the Central Nervous System and the Peripheral Nervous System? What are the autonomic and somatic branches of the peripheral nervous system? What are the sympathetic and parasympathetic branches of the autonomic nervous system? What bodily functions are associated with each? 29 What is a simple reflex pathway? Sensory neurons? Motor neurons? Interneurons? The BRAIN 30 How are the functions
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Fisher Syndrome is the patients are affected by paralysis in the head‚ consequently resulting in difficulty controlling the eye muscles and balance. These patients have abnormal muscle coordination‚ paralysis of the eye muscles‚ absence of tendon reflexes‚ generalized muscle weakness and respiratory failure. They will begin to recover in as little as two to four weeks after the onset of symptoms and may be complete within six months. They rarely
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field of psychology even to this day. Apart from this‚ he also provided psychological explanations for various somatic illnesses. Thus‚ he was able to link the physical and psychological aspects of various illnesses. Rene Descartes (1596-1650) proposed models to explain animal and human behavior. He proposed theories linking the mind and body and explanations for motor behavior (reflexes). He was a pioneer in identifying the mind with consciousness and self-awareness. He was also able to differentiate
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Human Biology 3A Notes CHAPTER 4: Chemical Messengers Homeostasis: the maintenance of a constant internal environment Homeostasis ensures that the fluid environment of the cells: • Contains the optimum concentration of nutrients‚ ions‚ gases and water • Stays at a constant temperature – the optimum temperature for normal cell functioning • Is maintained at the optimum pressure Feedback system: Negative feedback system: Negative feedback: Positive feedback: A situation where the response toa
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cord. The dorsal portion of the inferior trunk then becomes the medial cord‚ and the posterior portion of all three trunks come together and form the posterior cord. Moving distally‚ the cords separate into terminal branches‚ which attend to both autonomic and
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she didn’t have a brain‚ she was the most alert baby in the nursery‚ holding her head up and looking around just like she knew what she was doing.” (Yorgason‚ 1995‚ p.34) Charity had been born without a brain but with an intact brain stem. The autonomic nervous system‚ used exclusively by newborn babies‚ is controlled by the brain stem. This was what gave Charity the illusion of normality; an illusion which would shatter in a few short weeks when function control would shift to the two hemispheres
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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 activity. It activated as he was preparing for
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Principles of Anatomy & Physiology in Sport Assignment 1 of 3 Muscular system Muscles Skeletal‚ cardiac and smooth are the three main types of muscle in the body. Skeletal muscle is a voluntary muscle‚ this means that it is under control by the somatic nervous system. When viewed under a microscope the appearance of this muscle is striped/ striated. “The primary function of the skeletal muscle is to produce fine movements to keep you alive. Skeletal muscle also contract as a reflex to a stimulus
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spinal cord‚ or a more complete exam performed to diagnose the presence and location of a spinal cord injury or neuromuscular disease. Deep tendon reflexes are responses to muscle stretch. The familiar "knee-jerk" reflex is an example of a reflex. This tests the integrity of the spinal cord in the lower back region. The usual set of deep tendon reflexes tested‚ involving increasingly higher regions of the spinal cord‚ includes: * ankle * knee * abdomen * forearm * biceps *
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The urinary tract uses urination as a cleaning mechanism‚ which acts as host defense against bacterial growth and infection. When urine is released from the urethra‚ any microbes that may have previously entered or were introduced into the sterile environment of the urinary tract are washed away and released from the body. However‚ sometimes bacteria is able to enter the urethra‚ colonize‚ and infect before the cleaning mechanism can take place. If the infection reaches the bladder‚ the consequences
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