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Gawad
Neuroscience Physiology
Lecture 5
Tuesday, November 6, 2018 1
SOMATIC
SENSATIONS
Mechanoreceptive
sensations
Tactile
sensation
Pressure
sense
Vibration
sense
Itch and tickle
Touch
sensation
Crude touch Fine touch
Tactile
localization:
Tactile
discrimination
Stereognosis
Kinesthetic
sensations
(Proprioceptive
sensations)
Conscious
kinesthetic
sensation:
Unconscious
kinesthetic
sensations
Theremoreceptive
sensations
Pain
sensation.
Tuesday, November 6, 2018 3
Ascending Tract (Sensory)
Descending Tract (Motor)
Tuesday, November 6, 2018 4
dorsal root ganglion (cranial or spinal)
Tuesday, November 6, 2018 5
dorsal root ganglion
Tuesday, November 6, 2018 6
Tuesday, November 6, 2018 7
Tuesday, November 6, 2018 8
Tuesday, November 6, 2018 9
Tuesday, November 6, 2018 10
Tuesday, November 6, 2018 11
Tuesday, November 6, 2018 12
Ipsilateral vs contralateral
Tuesday, November 6, 2018 13
14
15
Tuesday, November 6, 2018 16
Tuesday, November 6, 2018
C
nucleus
proprius
CG
Internal
arcuate
fibers
medial
lemniscus
VPLNT
postcentral
gyrus of
parital lobe
VPLNT
Dorsalcolumnlemniscalpathway
Aα,β
Aα,β
Ventralspinothalamictract
Post
central
gyrus
of
parital
lobe
Aβ
Clark's cells
Vermis
Spino-Cerebellar(ventral&dorsal)tracts
Dorsal
Ventral
uncrossed
Ventral
crossed
Tuesday, November 6, 2018 18
Cold Pain
Receptors
Cold
Receptors
Warmth
Receptors
Hot Pain
Receptors
4535100
local anaesthesia

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