long thoracic nerve

(redirected from External respiratory nerve of Bell)
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long tho·rac·ic nerve

[TA]
arises from the fifth, sixth, and seventh cervical nerves (roots of brachial plexus), descends the neck behind the brachial plexus, and is distributed to the serratus anterior muscle; it is somewhat unusual in that it courses on the superficial aspect of the muscle it supplies; its paralysis results in "winged scapula."

long thoracic nerve

one of a pair of supraclavicular branches from the roots of the brachial plexus. It arises by three roots, from the fifth, the sixth, and the seventh cervical nerves. The fibers from the fifth and the sixth cervical nerves join just after they pierce the scalenus medius and are united with the fibers from the seventh cervical nerve at the level of the first rib. Compare phrenic nerve.

long tho·rac·ic nerve

(lawng thōr-as'ik nĕrv) [TA]
Arises from the fifth, sixth, and seventh cervical nerves (roots of brachial plexus), descends the neck behind the brachial plexus, and is distributed to the serratus anterior muscle; it is somewhat distinctive in that it courses on the superficial aspect of the muscle it supplies; its paralysis results in "winged scapula."
Synonym(s): nervus thoracicus longus [TA] .

Bell,

Sir Charles, Scottish surgeon, anatomist, and physiologist, 1774-1842.
Bell law - the ventral spinal roots are motor, the dorsal are sensory. Synonym(s): Bell-Magendie law; Magendie law
Bell-Magendie law - Synonym(s): Bell law
Bell palsy - paresis or paralysis, usually unilateral, of the facial muscles, caused by dysfunction of the 7th cranial nerve. Synonym(s): peripheral facial paralysis
Bell phenomenon - upward movement of the eye on attempted eyelid closure in a patient with peripheral facial paralysis.
Bell respiratory nerve - Synonym(s): long thoracic nerve
Bell spasm - involuntary twitching of the facial muscles. Synonym(s): facial tic
external respiratory nerve of Bell - Synonym(s): long thoracic nerve
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