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NUR 529 - Exam 1 (Somatosensory Function, Pain, Headache, Temperature Regulation) Questions And Revised Correct Answers | Already Passed $12.99
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NUR 529 - Exam 1 (Somatosensory Function, Pain, Headache, Temperature Regulation) Questions And Revised Correct Answers | Already Passed
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NUR 529 - Exam 1 (Somatosensory Function, Pain, Headache, Temperature Regulation) Questions And Revised Correct Answers | Already Passed what does somatosensory component of NS do? - Answer -provides the CNS an awareness of body sensations such as touch, temperature, body position, and pain s...

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  • May 7, 2024
  • 12
  • 2023/2024
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what doe s somatosensory component of NS do? - Answer -provides the CNS an awareness of body sensations such as touch, temperature, body position, and pain sensory neuron types (3) - Answer -general somatic afferent neurons special somatic afferent neurons general visceral afferent neurons general somatic afferent neurons - Answer -have branches with widespread distribution throughout the body & with many distinct types of receptors that result in sensations such as pain, touch & temperature special somatic affer ent neurons - Answer -located in muscles, tendons, and joints; convey information on position and movement of body general visceral afferent neurons - Answer -Have receptors on various visceral structures that sense fullness & discomfort first order neur ons - Answer -transmit sensory information from periphery to CNS transmit information from sensory receptors to dorsal hormones neurons second order neurons - Answer -communicate with various reflex networks and sensory pathways in the spinal cord and tra vel directly to the thalamus third order neurons - Answer -relay information from the thalamus to the cerebral cortex (sensory cortex) dermatome - Answer -the region of the body wall that is supplied by a single pair of dorsal root ganglia sensory unit consists of - Answer -a single dorsal root ganglion neuron, its receptors, and its central axon that terminates in the dorsal horn of the spinal cord or medulla what are the ascending pathways of the somatosensory system - Answer -1) the discriminative pathway - crosses at the base of the medulla 2) anterolateral pathway - crosses within the first few segments of entering the spinal cord 3) perception - involves centers in the thalamus and somatosensory cortex (in the thalamus the sensory inf o is crudely localized, full localization and interpretation of the stimuli require processing by the somatosensory cortex) sensory homunculus - Answer -rejects the density of cortical neurons devoted to sensory input from afferents in corresponding perip heral areas tactile system - Answer -relays info about touch, pressure, and vibration uses tow anatomically separate pathways to relay touch info to the opposite side of the forebrain (the dorsal column discriminative pathway and the anterolateral pathway ) delicate touch, vibration, position, and movement use what pathway - Answer -
discriminate pathway to reach the thalamus, where third order relay occurs to the primary somatosensory strip of the parietal cortex crude tactile sensation uses what pathway - Answer -it's carried by the bilateral slow -
conducting anterolateral pathway temperature sensations of warm -hot and cold -cold result from - Answer -stimulation of thermal receptors of sensory units projecting to the thalamus and cortex through the antero lateral system on the opposite side of the body where is proprioception processed - Answer -through the rapid -transmitting dorsal column -medial lemniscus pathway how can you assess the level and extent of damage in the somatosensory pathways - Answer -by either testing the ipsilateral dorsal column (discriminative touch) system or the contralateral temperature projection system allodynia - Answer -pain from noninjurious stimuli hyperalgesia - Answer -extreme sensitivity to pain analgesia - Answer -The absence of pain from stimuli that normally would be painful Neospinothalamic tract - Answer -fast impulses; acute pain uses myelinated A fibers Paleospinothalamic tract - Answer -slow impulses; chronic/dull pain uses unmyelinated C fibers autonomic responses with acute pain - Answer -increased HR, SV, BP, pupillary dilation, muscle tension decreased gut motility, salivary flow (dry mouth) autonomic responses of chronic pain - Answer -none usually serves no useful function

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