Week 1: Somatosensory- Receptors Flashcards
1
Q
Kinds of sensory receptors
A
- Light touch
- Deep pressure
- Vibration
- Pain
- Itch
- Heat vs cold
- Kinesthesia
- Proprioception
2
Q
Mechanoreceptors
A
Respond to mechanical deformation due to touch, pressure, stretch, and vibration
3
Q
Chemoreceptors
A
Respond to substances released by cells
4
Q
Thermoreceptors
A
Respond to temperature changes
5
Q
Nociceptors
A
- Subset of mechanoreceptors, chemoreceptors, and thermoreceptors
- Preferentially sensitive to stimuli that may damage/threaten tissue
- Stimulation results in pain sensation
6
Q
Pacinian corpuscle
A
- Vibration
- Pressure
- Fly on the skin
7
Q
Meissner corpuscle
A
Light touch
8
Q
Ruffini corpuscle
A
Stretch
9
Q
Merkel cells
A
Light touch
10
Q
Free nerve endings
A
Nociceptors
11
Q
Hair follicle receptors
A
- Hair end organs
- Light touch, movement of the hair
12
Q
Krause end bulbs
A
Touch
13
Q
Tonic receptors
A
Fire for duration of stimulus
14
Q
Phasic receptors
A
Adapt to constant stimulus and stop firing while stimulus is still present
15
Q
Receptive field
A
Area of skin innervated by a single afferent neuron
