Lecture 18 Flashcards
Somatosensory and Pain (7 cards)
1
Q
What are Merkel cells?
A
Receptors for pressure and texture.
2
Q
What are Meissner corpuscles?
A
Receptors for light touch and vibration.
3
Q
What is the somatosensory homunculus?
A
Map of body regions in cortex representing touch sensitivity.
4
Q
What is nociceptive pain?
A
Pain from tissue damage.
5
Q
What is phantom limb?
A
Pain or sensation in a missing limb.
6
Q
What is the social pain hypothesis?
A
Social rejection activates brain regions like physical pain.
7
Q
What are two-point thresholds?
A
Smallest distance at which two touches are felt as separate.
