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Chapter 14 - Reflex classification Superficial cord...

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Chapter 14 Human Reflex Physiology
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l Reflexes are rapid and predictable automatic responses to stimuli l Neural reflex involves sensory fibers to CNS and motor fibers to effectors An introduction to reflexes
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l Five components ¡ Receptor – it is the site of the stimulus ¡ Sensory neuron – transmits the stimulus ¡ Integration Center l Monosynaptic reflex l Polysynaptic reflex ¡ Motor neuron - conducts the impulse to the effector ¡ Effector – muscle or gland Reflex arc
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Arc Reflex Components
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l Somatic Reflexes ¡ Patellar reflex (knee-jerk) ¡ Achilles reflex ¡ Withdrawal reflex ¡ Crossed extensor reflex l Extension of the opposing limb
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Unformatted text preview: Reflex classification ¡ Superficial cord reflex l Plantar reflex • Normal response – curling the toe • Abnormal response – Babisnki’s sign Reflex classification The Babinski Reflexes Reflex classification l Corneal reflex - Cranial nerve V l Gag reflex • Cranial nerves IX and X l Autonomic Reflexes ¡ Pupillary reflex l Ipsilateral constriction of the pupil ¡ Consensual reflex l Contralateral constriction of the pupil ¡ Ciliospinal reflex l Pupil dilation when pinching the neck ¡ Salivary reflex Reflex classification...
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