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Action potentials -An action potential initiates an electrical Pupil reflex Detecting stimuli- photoreceptors
Types of neurone
-From resting potential (-70 mV) current Motor- Bright light sympathetic Cones- colour vision; rods- monochrome
depolarisation occurs when a -Depolarisation spreads to the adjacent CNS to effector reflex circular muscles Rods in dark:

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Effects of exercise Muscles bring about movement at joints and work in Sliding Filament Theory
Disabilities and injuries in sport
antagonistic pairs -Impulse at neuromuscular junction
-Prosthetic limbs 2+
Too much exercise Too little exercise Extensors contract to extend; flexors contract to flex -Ca released; attaches to troponin
-Knee joint…



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Lucy Sargent

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