Cutaneous Senses Flashcards
1
Q
Merkel Receptor
A
- continuous pressure
- help with fine details
2
Q
Meissner Corpuscle
A
- “on” and “off”
- handgrip control
3
Q
Ruffinin Cylinder
A
- continuous
- stretching
4
Q
Pacinian Corpuscle
A
- “on” and “off”
- vibration and fine texture
5
Q
Medial Leminiscal Pathway
A
Carry proprioceptive and touch information
6
Q
Spinothalamic Pathway
A
Temperature and pain information
7
Q
Reasons why we have tactile acuity
A
1) densely packed merkel receptors
2) certain areas of skin have smaller receptive fields
3) large amount of cortical tissue devoted to high acuity areas
8
Q
Pain and the brain
A
- opioids mimic endorphins
- evidence for endorphins ➡️ naloxone increase pains and decrease placebo effect
9
Q
Nociceptors
A
Receptors that respond to damage/potential damage
