shawn333
Forum Senior
Topics: 25
Posts: 105
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what nerve is involed in the referred pain to the shoulder ? what muscle does it supply (part of mucle?)?
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Time Wounds all Heals , Contain the damage .
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| dxtxpx
Forum Guru
Topics: 259
Posts: 1,233
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phrenic nerve
also u didnt ask, but want to add this:
The phrenic nerves provide the major nerve supply to the diaphragm because of their embryonic association with the septum transversum that goes on to form the central tendinous part of the diaphragm.
Also, it supplies a large percentage of the median structures of the mediastinum i.e. it is sensory for:
pleura:mediastinal, central parts of diaphragmatic
pericardium: fibrous, superficial serous pericardium
abdominal components e.g.:superior peritoneum, liver, gallbladder
Each phrenic nerve contributes predominantly motor fibres solely to its hemidiaphragm. Damage to the phrenic nerve may lead to paralysis of one hemidiaphragm. It has a few sensory fibres which supply all but the peripheral attachments of the muscle. Irritation of the phrenic sensory fibres tends to refer pain to the C4 dermatome territory.
The passage taken by the right and left phrenic nerves through the thorax is different. This is largely due to the disposition of great vessels within the mediastinum.
Occasionally, the phrenic nerve may be joined by an accessory phrenic nerve.
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| shawn333
Forum Senior
Topics: 25
Posts: 105
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mdW , so it does supply the centeral part !!
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| shrek
Forum Newbie
Topics: 3
Posts: 16
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all true about the phrenic....
the nerve is the axilary that gives sensory innervation to the shoulder and the muscle is the deltoid.
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