Nervous system functions - Seeley Ch 14
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| Receptors that respond to extreme mechanical, chemical, or thermal stimuli. Pain | Nociceptors
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| respond to changes in temperature | Thermoreceptors
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| chemicals become attached to receptors on their membranes. Smell and taste | Chemoreceptors
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| compression, bending, stretching of cells. Touch, pressure, proprioception, hearing, and balance | Mechanoreceptors
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| Receptors associated with organs | Visceroreceptors
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| Receptors that respond to pain, itch, tickle, temperature, joint movement and proprioception | Free nerve endings
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| Receptors that respond to light touch and superficial pressure | Merkel disk
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| Receptors that respond to light touch, very slight bending of hairs | Hair follicle receptors
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| Receptors that respond to deep cutaneous pressure, vibration and propriception. | Pacinian Corpuscle
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| Two Point Discrimination. | Meissner Corpuscle
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| Receptors that respond to continuous touch or pressure, depression or stretch of skin | Ruffini end organ
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| Detection of muscle stretch, important for muscle tone | Muscle spindle
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| Detection of tendon stretch | Golgi tendon organ
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| decreased sensitivity to a continued stimulus | Accomodation
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| provide information about the precise position and the rate of movement of various body parts | Proprioceptors
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| sensation of pain in one region of body that is not source of stimulus | Referred Pain
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| System of motor nerve tracts that maintains muscle tone, controls speed and precision of skilled movements | Pyramidal System (Direct Pathways)
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| System of motor nerve tracts that is involved with less precise movements and the initiation or change or movements (Parkinson's Disease) | Extrapyramidal System (Indirect Pathways)
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| sensory speech- understanding what is heard and thinking of what one will say | Wernicke's area
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| motor speech- sending messages to the appropriate muscles to actually make the sounds | Broca's area
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| absent or defective speech or language comprehension. Caused by lesion somewhere in the auditory/speech pathway | Aphasia
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| controls muscular activity in and receives sensory information from LEFT side of body | Right Cerebral Cortex
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| Right: controls muscular activity in and receives sensory information from RIGHT side of body | Left Cerebral Cortex
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| Sensory information of both hemispheres shared through commissures | corpus callosum
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| very short-term retention of sensory input | Sensory Memory
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| information retained for few seconds to minutes | Short-term memory
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| explicit or declarative memory, retention of facts, accessed by the hippocampus and amygdala | Long-term memory
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| memory associated with development of skills such as riding a bicycle, playing an instrument | Implicit memory
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| series of neurons and their pattern of activity. Involved in long-term retention of information, a thought, or an idea. | Memory Engram (memory trace)
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| System involved with emotions, mood and behavior as well as basic survival instincts | Limbic Sytem
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