General Properties of Somatosensory Receptors Flashcards
Somatosensory are what specific stimulus:
Touch vibration temperature nociception proprioception
Special sensory contains:
smell vision hearing taste equillbrium
Viseral sensory contians:
pressure
nociception
stretch
fullness
Nociception is a component of?
Pain
Somatosensory Neuron is located where - spinal nerves?
Dorsal/posterior root ganglion
Somatosensory Neuron is located - cranial nerves?
Cranial nerve ganglion
What type of neuron is somatosensory?
Pseudounipolar
What is sensory a (Modality or voltage)?
Modality - determined by the type of sensory receptor.
Sensory is determined by?
The location of sensory receptor.
Also what the size of the receptive field
How intense is the sensory?
Sensitivity of sensory receptor.
Frequency of action potential
Number of neurons activated
What does not have pain receptors?
The brain but meninges do!
Where are receptors located?
Skin muscle tendon joint periosteum (bone) Visera
What is stereognosis?
The ability to use touch and proprioception without other sensory cues (vision or hearing) to identify objects.
Where are somatosensory receptors that are specialized endings located where?
In the peripheral process/axon of the pesudounipolar somatosensory neuron.
-Create local potentials at the distal end of the peripheral process.
What happens if the summation is of sufficient magnitude at a somatosensory receptor?
An action potential is generated in the peripheral process/axon.
