Central Chest Pain Flashcards
Somatic pain
Muscle bone joint intervertebral nerves
What kind of pain is somatic?
Sharp localised stabbing
Visceral pain
Heart tracheae abdominal
What kind of pain is visceral?
Dull aching nauseating poorly localised
Radiating pain
Pain felt at the site of injury but also spreading out
Referred pain
Pain only felt at site away from the injury
What is the area of the brain that turns pain into consciousness ?
Somatosensory postcentral gyrus
What is the area of the brain that controls muscle movement?
Somatomotor gyrus
What divides the two areas that control motor and sensory functions?
Central sulcus
What is herpes zoster?
Shingles
Why does herpes zoster cause somatic pain?
The virus is in the posterior root ganglion, so pain felt in dermatome affected, pain proceeds blisters
When could herpes zoster cause central chest pain?
When the T4/T5 posterior ganglion are infected
Why does radiating pain occur?
As the somatic sensory nerves for the body wall and the visceral afferent nerves both return via T1/5 and lower cervical vertebra brain gets confused and pain is related to entire dermatome
Why does referred pain occur?
Shared input between somatic and visceral afferent nerves brain chooses to believe pain occurs from the body wall
Example of radiating pain?
Left arm and upper chest pain during heart attack or angina
