Difference between revisions of "2012 Group Project 2"

From Embryology
(Hot/Cold)
(Central Somatosensory Differentiation)
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This is just preliminary work and will be edited later:
 
This is just preliminary work and will be edited later:
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'''Adult Central Somatosensory Pathway'''
  
 
'''Making Connections between Afferent Sensory Fibres and the Central Nervous System (CNS)'''
 
'''Making Connections between Afferent Sensory Fibres and the Central Nervous System (CNS)'''

Revision as of 12:19, 29 August 2012


Somatosensory Development

--Mark Hill 12:23, 15 August 2012 (EST) This is a better project title.

- Touch, Pain, Hot/Cold, Pressure Reception


Introduction

History of Discoveries

Central Somatosensory Differentiation

This is just preliminary work and will be edited later:

Adult Central Somatosensory Pathway

Making Connections between Afferent Sensory Fibres and the Central Nervous System (CNS)

By stage 23;

  • Axons of primary afferent neurons reach the spinal cord
  • DRG begins to send out outgrowths

When these afferent neurons reach the CNS, axons of these afferent neurons bifurcate and begin to extend into the Primordium of the dorsal funiculus

By Stage 24:

  • the afferent axons have projected 1 segment rostrally and 1 segment caudally relative to the axons' point of entry
  • the afferents start to grow within the white matter (periphery of Spinal Cord)

Stage 28 –

  • unbranched afferent axonal fibres invade gray matter at the border of Dorsal horn
  • axonal fibres extend Rostrally and caudally and start sending fine collateral fibres into the gray matter of spinal cord (the cellular, central region of spinal cord)

Stage 29:

  • afferent fibres have extended 100-200μm into gray matter of the Dorsal Horn

Reference: <pubmed>2918087</pubmed>

Touch

Pain

Hot/Cold

Tlx3 acts in combination with Runx1 to control the development thermoceptors

Pressure

Current Research

Glossary

References


External Links

External Links Notice - The dynamic nature of the internet may mean that some of these listed links may no longer function. If the link no longer works search the web with the link text or name. Links to any external commercial sites are provided for information purposes only and should never be considered an endorsement. UNSW Embryology is provided as an educational resource with no clinical information or commercial affiliation.

--Mark Hill 12:22, 15 August 2012 (EST) Please leave the content listed below the line at the bottom of your project page.


2012 Projects: Vision | Somatosensory | Taste | Olfaction | Abnormal Vision | Hearing