Pain
Receptors for the pain
Free nerve endings
Where are going to arrive the nerve fibers of this system?
Primary and secondary somatosensitive area
The anterolateral pathway is used for localize for sensations
False
Classification of somatic senses
Mechanoreceptors, thermoreceptors and pain receptors
Types of stimuli for the fast and slow pain
Fast pain: mechanical and thermal stimuli
Slow pain: chemical stimuli
Parietal lobe
Which laminate does the fiber arrive?
I, IV, V, VI
What is the difference between low and quick adaptability?
When you touch a surface the receptor used can change in relation to the time spent touching it.
What are the neurotransmitters for the slow and fast pain?
Fast pain: glutamate
Slow pain: substance P and glutamate
On what layer of the somatosentive cortex is going to be the sensory signal input?
IV
Explain what does the corticofugal signals do
Control the intensity of the sensory input
3 types of thermoreceptors
Cold, hot and pain receptors
What are the substances use on the analgesia system?
Serotonin and enkephalin
What is going to be affected if the primary somatosensitive area doesn’t work?
What complex are used for touch sensations?
Intralaminar nuclei and ventrobasal complex
What is the nerve filament of free nerve endings?
A-delta (5-30 m/s)
Explain the analgesia system
depends on the answer
What is the Weber-Fechner principle?
With a very high stimuli, even higher stimuli will be needed to produce a change. And with a very light stimuli equally mild stimuli will be needed to produce a change.
Explain the anterolateral pathway?
…
6 types of receptors
Free nerve endings, Meissner’s corpuscle, Merkel’s disk, Ruffini’s endings, Pacinian corpuscles, Hair-end organ