KNR 181 test (1).pdf - 1. Pns a. Cns- link between outside...

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1.Pnsa.Cns- link between outside world and brainb.Neural structure1.Not brain and spinal cordii.Sensory receptorsiii.Gangliaiv.Motor endingsv.Nerves2.Sensory divisiona.Respond to stimulib.Classifiedi.Type of stimulus they detectii.Body locationiii.Their structure3.Mechanoreceptorsa.Respond to touchb.Pressurec.Vibrationd.Stretche.Tensionf.Itch4.Thermoreceptorsa.Temp5.Photoreceptorsa.Light6.Chemoreceptorsa.Chems7.Noicoceptorsa.Pain8.Interoceptors- in bodya.Chem changesb.Stretching tissuesc.Temp9.Exteroceptors- out bodya.touchb.Pressure10. Priopoceptorsa.Provide the brain w info to location of body in space11. Examples of proprioceptorsa.Muscle spindlesi.Detect muscle stretchii.Resists stretchb.Golgi tendon organsi.Located in tendons
ii.Activated when controls, tendon stretchesc.Joint kinesthetic receptorsi.Monitor stretch in articular capsulesii.Joint position and movement12. Sensory integrationa.Sensationi.Awareness of change/stimulusb.Perceptioni.Conscious interpretation of the stimulusii.Determines how we will respond to the stimulusc.Both occur in the cns13. Adaptationa.Adaptation occurs when sensory receptors are subjected to an unchargingstimulusi.Receptor membranes become less sensitiveii.Receptor potentials decline in frequency or stop14. Nerve structurea.nerve - cordline organsb.Part of the pnsc.Parallel bundles of axons in connectedness tissued.Endoneurimi.Each axon is surrounded by a delicate layer of loose connective tissuee.Perinerium binds groups of axons into bundlesf.Epineuriumi.Encloses all the fascicles to form the nerve15. Regeneration of nerve axonsa.Cns axons- no regeneration after injuryi.Spinal cord and brain damage irreversibleb.Pns axons- may regeneratei.schwann cells play aii.1.5 mm/dayiii.Greater the distance between severed ends the less likely the nerve canregenerate/repairc.Peripheral nerves emerge from two locationsi.Cranial nervesii.Spinal nerves16. Cranial nervesa.Twelve parts of cranial nerves arise from the brainb.Sensorc.Motord.Number and name17. Cranial nervesa.Olfactoryi.Smell
b.Optici.Visionc.Oculomotori.Eye motord.Trochleari.Extrinsicii.Eye movementiii.4/6 musclesiv.Pupil reflexe.Trigeminali.Muscle of face1.Senses2.Motor chewing3.Sensory impulsesa.Anterior scalpb.Eyelidsc.Nosed.Cheeke.Teeth4.3 branchesf.Abducensi.Extrinsic eye muscle1.Adbduct eyeballg.Faciali.Expressionsii.Tasteiii.Salivary glandsiv.Lacrimal glandsh.Vestibulochleari.Hearing and balancei.Glossopharyangeali.Swallowingii.Gagiii.Tasteiv.Pharynxv.Middle earj.Voguei.Voice boxii.Swallowing and speechiii.Ans regulation of HRiv.Breathingv.Abdominal viscerak.Accessoryi.Helped vogue
ii.Spinal containsl.Hypoglossali.Motor function- tongue1.Mix and manipulate chewing2.Swallowing and speechii.

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