Cutaneous Senses

1
Cutaneous Senses
2
Cutaneous Senses

• Skin
• Receptors
• Merkel-pressure
• Meissner-Flutter
• Ruffini-Stretching
• Pacinian-Vibration

3
Cutaneous Senses

• Skin
• Receptors
• Merkel-pressure
• Meissner-Flutter
• Ruffini-Stretching
• Pacinian-Vibration

4
Cutaneous Senses

• Receptive Fields
• Merkel-pressure
• Meissner-Flutter
• Ruffini-Stretching
• Pacinian-Vibration

5
Cutaneous Senses

• Receptive Fields Merkel-pressure
  Meissner-Flutter Ruffini-Stretching
  Pacinian-Vibration

6
Cutaneous Senses

• Merkel-pressure, Meissner-Flutter, Ruffini
  Stretching, Pacinian-Vibration

7
Cutaneous Senses

• Temperature Receptors

8
Cutaneous Senses

• Neuronal
• Pathways

9
Cutaneous Senses

• Two-point
• discrimination

10
Cutaneous Senses

• The Cortex

11
Cutaneous Senses

• Phantom Limbs

12
Cutaneous Senses

• Phantom Limbs

13
Cutaneous Senses

• Pain
• Nociceptors
• Anterior
• Cingulum
• Somatosensory
• Cortex

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Cutaneous Senses

• Pain
• Nociceptors
• Anterior
• Cingulum
• Somatosensory
• Cortex

15
Cutaneous Senses

• Pain
• Nociceptors
• Anterior
• Cingulum
• Somatosensory
• Cortex
• Lesion of the Cingulum reduces the emotional part
  of pain.

16
Cutaneous Senses

• Cognitive Aspects of Pain perception
• Pain expectation
• Shifting Attention
• Content of Distractiongt

17
Cutaneous Senses

• Pain
• Gate Control Theory
• S vs L Fiber types

18
Cutaneous Senses

• Pain
• Endorphins
• Stimulation of endorphin sites in the Raphe
  Nucleus and Per-aquiductal gray matter reduces
  pain and instills euphoria