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RxPG :: View topic - Reffered pain  
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mightchillout


reffered pain
i was studyin refferd pain over medial side of left arm in MI............


so the question is as to why does reffered pain reaaly occur??????


no doubt about the dermatome and the sensory distribution,,,,,,,,,,,,,,,,but wat is the initial cause of reffered pain????

UNANSWERED: Topics division/frequency in final mbbs question papers?

pearllysun
Aim Other

im too curious abt this.
im too curious abt this. congrats 4 bringing up this post , hope many answers , ill do some effort to get an answer .


pearllysun
Aim Other

angina pectoris = left arm reffered pain .
pearllysun wrote:
im too curious abt this. congrats 4 bringing up this post , hope many answers , ill do some effort to get an answer .


since the heart is located in most people on the left side of chest due to which reffered pain occurs in the left arm unless they have "situs inversus" where it would be pointing to the right side of chest. The aorta (the major blood vessel arising from heart) divides into subclavian arteries and carotid arteries which supply head and arms. Nerve connections run alongside arteries therefore if you develop angina pectoris in heart, your arteries will also develop pain. Referred pain from angina can also be present in right arm(brachial artery) and/or neck(carotids). few other examples of referred pain are gall bladder pain - left shoulder pain.

hope im right mightchillout, lets see what other members say .

i wish if in case my point is wrong kindly correct me .

pearllysun


pearllysun
Aim Other

Referred pain
Referred pain :

Referred pain is an sensation felt in an area separate from the site of the causative injury or other painful stimulation. Often, referred pain arises when a nerve is compressed or damaged at or near its origin. In this circumstance, the sensation of pain will mostly be felt in the territory that the nerve serves, even though the damage originates elsewhere.

pearllysun


pearllysun
Aim Other

referred pain in left arm - other reasons.
even these could be the reason : liver, gall bladder, stomach, spleen, lungs, or pericardial sac (the connective tissue bag containing the heart)

pearllysun


mightchillout


thanks a lot pearly sun....but i'm not the one to authorise dis.....

but i have another confusion....................pain shud only be there if the nerve is injured at its ORIGIN......so how does pain refer to other part while the origin aint damaged>???


pearllysun
Aim Other

lets wait ......
mightchillout wrote:
thanks a lot pearly sun....but i'm not the one to authorise dis.....

but i have another confusion....................pain shud only be there if the nerve is injured at its ORIGIN......so how does pain refer to other part while the origin aint damaged>???


im trying to find out an answer until then we'll wait for other members to answer else we'll somehow figure out .


mightchillout


pearllysun wrote:
mightchillout wrote:
thanks a lot pearly sun....but i'm not the one to authorise dis.....

but i have another confusion....................pain shud only be there if the nerve is injured at its ORIGIN......so how does pain refer to other part while the origin aint damaged>???


im trying to find out an answer until then we'll wait for other members to answer else we'll somehow figure out .
ok..i got sumthin.........


,,,,...Nerve fibres from the diseased organ/sructure ascend to a specific area in the CNS....this is along a common pathway...hence the cerebral cortex is incapable of distinguishing between the sites..leading to a sensation of pain in the dermatome distribution......

please correct me if i'm wrong.. icon_smile.gificon_smile.gif

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