of this practical. (5) A. Responses to Nerve Stimulation Attach a copy of your experimental recordings showing a period of spontaneous contractions and the response to stimulating the nerves at 20 Hz with both a voltage that produced only a modest response and the voltage that produced the maximal response. (5) 1) Briefly describe the response of the ileum when it is unstimulated and during stimulation of the nerves. (5) 2) What is the frequency of the regular spontaneous
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stimulated muscle which is higher than the threshold voltage for the directly stimulated nerve‚ 10 mV. The direct stimulation of the muscle required a higher voltage in order to get a contraction. This most likely occurs for two reasons. First is the fact that once a nerve reaches its threshold voltage‚ it perpetuates the action potential down the nerve to the muscle. This brings us to the second reason‚ the nerve branches out and reaches many thousand parts of the muscle‚ which all get depolarized
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The Computer. Health Ergonomics Effects of extended use Long term computer exposer can cause eye strain Using the computer for a long period of time causes the eye to be stained due to too much light Carpal tunnel syndrome This is a pinched nerve in the wrist and is caused due to the excessive amount of typing on the computer Inappropriate lighting Eye Strain Materials should be placed on a document holder and moved close enough to the screen so that you do not have to swing your head and
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structures that would’ve been reattached would be the humerus bone. Additionally‚ the muscles that would’ve been reattached are biceps brachii‚ brachialis‚ triceps‚ and the coracobrachialis. The nerves that would’ve been fixed would be the median‚ ulnar‚ radial‚ musculocutaneous‚ and the antibrachial cultaneous nerves. The brachial‚ superior and inferior collateral‚ profunda brachii arteries would have to be reattached‚ along with several smaller veins. 3. The system that was most likely not reattached
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Nuttel has a medical condition that has to do with his nerves. Mr. Nuttels nerves are very easily damaged. His nerves cause him to have breakdowns when he gets scared or something. Mr. Nuttels condition in the house was bad because Vera told him a story that got him nervous. He thought he was seeing ghost but it was just the story Vera told him. Mr. Nuttels condition was very serious because he could have had a heart attack from his nerve condition or possibly even worse than that. Mr. Nuttel was
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Sample Physiology MCQs 1. Compound action potentials can be graded responses. True 2. The sciatic nerve contains axons of both afferent and efferent neurones. True 3. The absolute refractory period of an action potential is the period after an initial stimulus when it is impossible to evoke another action potential with a second stimulus. True 4. The refractory periods of individual axons are important as they dictate the maximal action potential firing rate of a neuron. True 5. Compound action
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Outline The human cerebrum controls every substantial capacity and translates data from the body’s environment. Knowledge‚ imagination‚ feeling‚ and memory are a couple of more things administered by the cerebrum. Secured by the skull‚ the mind is made of parts called the cerebrum‚ cerebellum‚ and brainstem. The brainstem goes about as a hand-off focus interfacing the cerebrum and cerebellum to the spinal string. The cerebrum gets data through the five detects: locate‚ notice‚ touch‚ taste‚ and
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During resting‚ peace and contentment the parasympathetic nervous system is active and it calms the heart output. During periods of fright‚ flight and fight the sympathetic nervous system is boosted by the hormone; adrenaline. The nerves of the adrenaline are the cardiac nerves. A special cluster
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holistic view‚ we analyse a blind man. Since this person has lost one of his senses he is much more dependant on other senses such as touch for example. Therefore the mind muscle connection has created strong links between the brain/nervous system and nerves in his fingers (braille) to ensure the human flys (recalling upon both the fight or flight theory and Darwin’s natural selection - and also a point that Tread-m touched upon in his most recent post‚ the Causality Paradigm - Cause and Effect ).
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Spinal Cord Injury * Short Case Study #3 1. Describe the functional anatomy of the spinal cord using the following terms: white matter‚ gray matter‚ tracts‚ roots‚ and spinal nerves. * White matter is one of the two components of the central nervous system‚ and it consists of glial cells and myelinated axons that transmit signals from one region of the cerebrum to another as well as in between the cerebrum and lower brain centers. Grey matter contains neural cell bodies. Unlike
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