First Aid Anatomy and Physiology – Flashcards
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What are the 11 organ systems of the body Remember the acronym SLINC MURDER
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S - skeletal L - lymphatic I - integumentary N - nervous C - cardiovascular M - muscular U - urinary R - respiratory D - digestive E - endocrine R - reproductive
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The CNS (CENTRAL NERVOUS SYSTEM) consists of 2 main axes
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the central (brain and spinal cord) and the peripheral (the 12 cranial nerves and 31 pairs of spinal nerves)
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What is the central nervous System
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In simple terms, the CNS is the command centre that controls everything that happens in the body, and is also the main storage compartment for everything we know or have experienced.
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What is the peripheral nervous system (PNS)
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It uses all of your senses (touch, taste, smell, hearing, sight, proprioception, nociception etc.) to feed information to the CNS about what you are feeling and experiencing. The CNS is the boss, and the (PNS) is the worker.
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The CNS has two main autonomic states
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the sympathetic (fight and flight) and the parasympathetic (rest and digest). These are hangovers from evolution - they are what ensured our survival.
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Sympathetic Nervous System (SNS) is what
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The SNS is our fight and flight system. This can also be described as our stress response
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Parasympathetic Nervous System (PaNS) is what
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The PaNS is the opposite of the SNS, it is responsible for resting, relaxation and digestion
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Nervous system primary survey
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R - response: we are looking at a casualty's level of consciousness. Use AVPU or COWS to help you:
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Nervous system secondary survey
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Pupils - are they equal and reactive to light? Dizzy/lightheaded Headache Limb strength (unilateral or bilateral weakness) Numbness or tingling anywhere Speech disturbances - slurred Facial or limb paralysis
