At a lesion

At a lesion of a secondary back fascicle the same basic functions n drop out. radialis, but already in a combination with a lesion n. axillaris.
Impellent fibers n. radialis иннервируют forearm extensors (m. triceps, m. anconeus), brushes (mm. extensores carpi radiales and carpi ulnares) and fingers (mm. extensores digitorum), buy cipro a forearm arch support (m. supinator), a muscle which is taking away the big finger (m. abductor pollicis longus) and m. brachio-radialis, taking part in a forearm flexion.
Sensitive fibers иннервируют a skin of a back surface of a shoulder (n. cutaneus brachii posterior), a dorsal surface of a forearm (n. cutaneus antibrachii dorsalis), the radial party of a dorsum of a brush and partially I, II and sometimes III fingers as it is shown on fig. 84, 85 and 86.
At a high lesion n. radialis, in an axillary fossa, in the top third of shoulder there is a paralysis of extensors of a forearm, a brush, the basic phalanxes of fingers, a muscle which are taking away the big finger, an arch support; the forearm flexion (т is weakened. brachio-radialis). The reflex from a tendon m dies away. tricipitis also it is a little weakened karpo-radial (at the expense of reduction deenergizing m. brachio-radialis). Sensitivity drops out on a dorsal surface of a shoulder, a forearm, partly a brush and fingers as it is shown on fig. 84, 85, 86. The zone of sensitive disorders on a brush quite often happens the zone considerably reduced because of overlapping by an innervation of the next nerves. The Sustavno-muscular feeling does not suffer. At lower levels of a lesion nerve function suffers ограниченно as above departing branches remain, that facilitates problems of topical diagnostics.
At a nerve lesion, rather frequent, at level of an average third of shoulder function of an extension of a forearm and a razgibatelno-ulnar reflex (m remains. triceps) sensitivity on a shoulder (n also is not broken. cutaneus brachii posterior).
At a lesion in the bottom third of shoulder there can be kept a function m. brachio-radialis and sensitivity on a dorsal surface of a forearm (n. cutaneus antibrachii dorsalis) as corresponding branches depart from the basic trunk of a nerve above, in an average third of a shoulder,
At a nerve lesion on предплечьи function m. brachio-radiatis and n. cutanei antibrachii dorsalis remains as a rule; buy rimonabant abaissements are limited to a lesion of extensors of a brush and fingers with sensitivity disturbances only on a brush. At a lesion even more low, in an average third of forearm, abaissement of impellent function can be even more limited; at safety of an extension of a brush the extension of the basic phalanxes of fingers can suffer only.
At a lesion of a radial nerve there is typical "falling", or hanging down, a brush (fig. 87).
Among numerous descriptions of assays or the tests defining impellent disorders at a lesion of a radial nerve, it is possible to note:
1) impossibility of an extension of a brush and fingers;
2) impossibility of abduction of the big finger;
3) at delution of the brushes combined together by palms with the straightened fingers, fingers of the amazed brush are not taken away, and incurvated - as though "slip" on a palm of a healthy, taken away brush (fig. 88).
N. ulnaris (an ulnar nerve)
The nerve admixed, is made of fibers CVIII - DI the roots which are passing then in structure at first primary bottom, then a secondary internal fascicle of a plexus.
At a lesion of roots CVIII - DI a primary bottom and secondary internal fascicle of a plexus nerve function suffers equally in a combination, to a lesion of dermal internal nerves of a shoulder and a forearm (nn. cutanei brachii and antibrachii mediales) and partial disturbance of function n. mediani, its bottom leg (weakening сгибателей fingers, muscles thenaris), that frames a clinical picture of paralysis Дежерин - Клюмпке.
Impellent function of a nerve basically consists in a palmar flexion of a brush (m. flexor carpi ulnaris), a flexion V, IV and partly III fingers (mm. lumbricales, flexor digitorum profundus, interossei, flexor digiti V), reduction of fingers, their delution (mm. interossei) and reduction of the big finger (m. adductor pollicis); besides, in an extension of average and trailer phalanxes of fingers (mm. lumbricales, interossei). Concerning an innervation of movements II - V fingers function of an ulnar nerve is interfaced to function median: the first has the primary relation to function V and IV, median - II and III fingers. Sensitive fibers иннервируют a skin ульнарного brush edges, V and partially IV, are more rare than III fingers as it is shown on fig. 86.