Cutaneous receptorcutaneous receptors, cutaneous receptor density
The cutaneous receptors are the types of sensory receptor found in the dermis or epidermis They are a part of the somatosensory system Cutaneous receptors include cutaneous mechanoreceptors, nociceptors pain and thermoreceptors temperature1
- 1 Types
- 2 Modalities
- 3 Morphology
- 4 See also
- 5 References
The sensory receptors in the skin are:
- cutaneous mechanoreceptors
- Ruffini's end organ skin stretch
- End-bulbs of Krause Cold
- Meissner's corpuscle changes in texture, slow vibrations
- Pacinian corpuscle deep pressure, fast vibrations
- Merkel's disc sustained touch and pressure
- Free nerve endings
- bulboid corpusclesend bulbs of Krause receptor
With the above-mentioned receptor types the skin can sense the modalities touch, pressure, vibration, temperature and pain The modalities and their receptors are partly overlapping, and are innervated by different kinds of fiber types
|Touch||Rapidly adapting cutaneous mechanoreceptors Meissner corpuscle end-organs
Pacinian corpuscle end-organs
hair follicle receptors
some free nerve endings
|Touch & pressure||Slowly adapting cutaneous mechanoreceptors Merkel and Ruffini corpuscle end-organs
some free nerve endings
|Aβ fibers Merkel and Ruffini's, Aδ fibers free nerve endings|
|Vibration||Meissners and Pacinian corpuscle end-organs||Aβ fibers|
|Temperature||Thermoreceptors||Aδ fibers cold receptors
C fibers warmth receptors
|Pain & Itch||Free nerve ending nociceptors||Aδ fibers Nociceptors of neospinothalamic tract
C fibers Nociceptors of paleospinothalamic tract
Cutaneous receptors are at the ends of afferent neurons They are usually encapsulated in elaborate cellular corpuscles Generally, they are linked to collagen - fibres networks within the capsule Ion channels are situated near these networks
In sensory transduction, the afferent nerves transmit through a series of synapses in the central nervous system, first in the spinal cord or trigeminal nucleus, depending on the dermatomic area concerned One pathway then proceeds to the ventrobasal portion of the thalamus, and then on to the somatosensory cortex2
- ^ Lincoln R J, Boxshall G A 1990: Natural history - The Cambridge illustrated dictionary Cambridge University Press, Cambridge, ISBN 0 521 30551-9
- ^ Mada S S 2000: Human Biology McGraw–Hill, New York, ISBN 0-07-290584-0
cutaneous receptor density, cutaneous receptor for pain, cutaneous receptor for pressure, cutaneous receptor microscopic, cutaneous receptor slides, cutaneous receptor song, cutaneous receptor tests, cutaneous receptors, cutaneous receptors in the skin, cutaneous receptors labeled line principle
Cutaneous receptor Information about
Cutaneous receptor viewing the topic.
There are excerpts from wikipedia on this article and video
Our site has a system which serves search engine function.
You can search all data in our system with above button which written "What did you look for? "
Welcome to our simple, stylish and fast search engine system.
We have prepared this method why you can reach most accurate and most up to date knowladge. The search engine that developed for you transmits you to the latest and exact information with its basic and quick system.
You can find nearly everything data which found from internet with this system.