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there are pain receptors in the skin, when we get any pain stimulus it pass through this receptors and goes to the CNS.
the stimulus pass through the dorsal nerve root to the marginal nucleus and substenti gelatinosa of Rolando which are the nucleus of the spinal cord.
from there the pain changes its side and goes to the other side and travel through the lateral spinothalamic tract(paleospinothalamic tract and neospinothalamic tract)
by this pathway it reaches to the higher centers of brain like limbic system, thalamus and to the paraqidactal gray matter.
from these nucleus it radiates to the sensory cortex,
this is how we feel the pain.
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∙ 11y ago
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What is the pathway of an impulse in a reflex arc?
Sensory receptor, sensory neuron, interneuron, motor neuron, and muscle.
If you are stung by a bee you don't feel any pain until the impulse reaches your?
When stung by a bee a person will not feel any pain until the impulse reaches their brain. The brain is the center of a humans nervous system.
Why might an individual experience the phenomenon known as referred pain?
Visceral pain afferents travel along the same pathway as somatic pain fibers
How does the four major elements of a simple nervous pathway function during pain withdrawal reflex?
During a pain withdrawal reflex impulses are sent through different nerves and to the spinal cord. This reflex does not make it to the brain but only to the spinal cord. We call this involuntary action because we dont control reflexes. The sensory neurons are the first to recieve the impulse, then they travel to the interneurons, or associative neurons, and then they go to the motor neurons which carries the impulse to the central nervous system. Then the effector is the response, so in this case your musscle will contract.
If you are stung by a bee you don't feel any pain until the impulse reaches your what?
brainstem
What is any drug that inhibits trans mission of sensory impulse at a synapse called?
Pain medication
What is the impulse conduction through a reflex arc?
nociceptors and mechanoreceptors (respond to touch, temp and pain)
Medial and lateral pain system in pain processing?
Fast pain messages travel along the lateral pain system. Slower pain messages travel along the medial pain system.
What is the pathway for crude pain?
The lateral spinothalamic tract (it carries sensation for temperature and pain) whereas the anterior spinothalamic tract carries sensation for light touch and pressure.
Does sensory neurons for touch also carries pain impulses?
yes touch receptors can also feel pain you have to touch or be hurt by something or someone for that impulse to relay back to the brain that, yes, that did hurt or, yes, I am in pain
What stops the transmission of pain impulse to the brain and spinal cord by preventing the perception of pain?
Non-narcotic analgesics work to stop the transmission of pain impulses by preventing the perception of pain. In low dosages, these drugs are available at drug stores without a prescription.
What part of the brain processes pain signals?
Processing of pain signals occurs in the parietal lobes, or sensory cortex. The actual sensation of pain is processed throughout the brain.
