Topic 9: Integumentary System - Cutaneous Sense Receptors Flashcards
1
Q
What is a receptor?
A
- sensory neuron (part of NS)
2
Q
What are cutaneous sense receptors?
A
- specialized cell that responds to stimuli (touch, temp, pain)
3
Q
What are the 4 major types of cutaneous sense receptors?
A
- touch receptors
- pressure receptors
- Thermoreceptors
- Nociceptors
4
Q
What are 3 types of hair receptors?
A
- free nerve endings
- root hair plexuses
- Meissner’s corpuscles
5
Q
Where are free nerve endings located?
A
- in epidermis
6
Q
Where are Meissner’s corpuscles located?
A
- in dermal papillae
7
Q
What are corpuscles?
A
- connective tissue capsule surrounding nerve ending
8
Q
What are the two types of pressure receptors?
A
- free nerve endings (in dermis)
- Pacinian corpuscles
9
Q
Where are Pacinian corpuscles located?
A
- deep in dermis or epidermis
10
Q
What are thermoreceptors?
A
- free nerve endings for temperature
11
Q
What are nocireceptors?
A
- free nerve endings for pain
12
Q
What happens when you get a third degree burn?
A
- no pain because nocireceptors are burned
