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Physiology IV: Somatosensory System 2 - Primary Sensory Neurons and their Modalities

Matthew Coulson 11 Fragen

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  1. 1Sensory Pathways:
    [blank_start]Dorsal Column/Medial Lemniscus System[blank_end] Discriminatory touch, pressure, vibration, proprioception
    [blank_start]Spinothalmic Tract[blank_end] Pain, Thermosensation, itch, tickle
    1. ADorsal Column/Medial Lemniscus System
    2. BSpinothalmic Tract
    3. CTectospinal Tract
    4. DCorticospinal Tract
  2. 2Third order neurons of the sensory pathways tend to originate in the [blank_start]Thalamus[blank_end] and project to the [blank_start]Primary Somatosensory Cortex[blank_end] (AKA the [blank_start]Postcentral[blank_end] Gyrus)
    1. AThalamus
    2. BHypothalamus
    3. CPutamen
    4. DCaudate Nucleus
    5. EPrimary Somatosensory Cortex
    6. FPrimary Motor Cortex
    7. GPostcentral
    8. HPrecentral
  3. 3Label the parts of the sensory and motor pathways shown below.Bild zu Frage 3
    1. ADorsal Column
    2. BSpinothalamic Tract
    3. CVentral Corticospinal Tract
    4. DLateral Corticospinal Tract
    5. ELateral Vestibulospinal Tract
    6. FMedullary Reticulospinal Tract
  4. 4The Dorsal Column is split into 2 parts, the fasciculus gracilis and fasciculus cuneatus. Which is which and what do they innervate?Bild zu Frage 4
    1. AFasciculus Gracilis
    2. BFasciculus Cuneatus
    3. CSensory Input Legs/Lower Trunk
    4. DSensory Input Arms/Upper Trunk
  5. 5The vertebral level where sensory information stops travelling via the fasciculus cuneatus and starts travelling in the fasciculus gracilis is ...
    1. AT6
    2. BC4
    3. CL1
    4. DS2
  6. 6In terms of the dorsal column medial lemniscus pathway, [blank_start]2nd[blank_end] order neurons cross collectively at the great sensory decussation and ascend in the [blank_start]medial lemniscus[blank_end] to the [blank_start]Ventral Posterior Lateral (VPL)[blank_end] nucleus of the thalamus
    1. A2nd
    2. B1st
    3. C3rd
    4. Dmedial lemniscus
    5. Elateral lemniscus
    6. Finferior colliculus
    7. GVentral Posterior Lateral (VPL)
    8. HVentral Superior Medial (VSM)
    9. IGeniculate
  7. 7The Dorsal Column Medial Lemniscus pathway allows for Stereognosis. What is this?
    1. AThe ability to recognise sounds by the vibrations they cause
    2. BThe ability to recognise an object by feeling it
    3. CThe ability to identify the magnitude of certain vibrations
  8. 8[blank_start]Lateral Inhibition[blank_end] is the way in which an active neuron inhibits the activity of its neighbours via inhibitory interneurons
    1. ALateral Inhibition
    2. BAdjacent Inhibition
    3. CLateral Depression
    4. DAdjacent Depression
  9. 9The somatosensory cortex has how many cell layers?
    1. A3
    2. B5
    3. C6
    4. D8
  10. 10As information is conveyed from one neuron to the next in a sensory pathway, differences in the activity of adjacent neurones are amplified. This phenomenon is called [blank_start]contrast enhancement[blank_end]
    1. Acontrast enhancement

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Beschreibung
Somatosensory System 2 - Primary Sensory Neurons and their Modalities given on 4/9/2018
Sprache
English
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