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338 |
Spinal nerves |
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1 |
Musculocutaneous nerve. N. musculocu15 |
Common digital nerves. Nn. digitales com- |
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1 |
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taneus. Nerve that arises from the lateral cord |
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munes. Nerves that run in the spaces between |
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(C5−7), penetrates the coracobrachialis and |
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the first four fingers and then divide. A |
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2 |
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supplies it as well as the biceps and brachialis |
16 |
Proper palmar digital nerves. Nn. digitales |
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muscles. It ends as the lateral antebrachial cu- |
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palmares proprii. Terminal branches of com- |
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taneous nerve. A |
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3 |
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mon palmar digital nerves. They supply the |
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2 |
Muscular branches. Rami musculares. |
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palmar aspect of the skin of the radial 31/2 fin- |
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Branches to the coracobrachialis, biceps and |
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gers and dorsal aspect of the skin of the radial |
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4 |
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brachialis muscles. A |
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21/2 distal phalanges. A |
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3 |
Lateral antebrachial cutaneous nerve. N. cu- |
17 |
Ulnar nerve. N. ulnaris. Nerve that arises from |
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5 |
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taneus antebrachii lateralis. Terminal branch of |
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the medial cord (C8, T1). It initially lies in the |
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musculocutaneous nerve. It penetrates the fas- |
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medial bicipital groove, breaks through the me- |
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cia at the bend of the elbow and supplies the |
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dial intermuscular septum and then, after pas- |
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6 |
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skin of the lateral forearm. A |
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sage in the groove for the ulnar nerve, pene- |
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trates the flexor carpi ulnaris. C |
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4Medial brachial cutaneous nerve. N. cutaneus
7 |
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brachii medialis. Nerve that arises from the me- |
18 |
Muscular branches. Rami musculares. They |
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dial cord (C8, T1) and supplies the skin of the |
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supply the flexor carpi ulnaris and the ulnar |
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8 |
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medial upper arm together with the interco- |
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part of the flexor digitorum profundus. C |
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stobrachial nerve. A |
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19 |
Dorsal branch of ulnar nerve. Ramus dorsalis |
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5 Medial antebrachial cutaneous nerve. N. cu- |
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n. ulnaris. Cutaneous branch passing between |
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9 |
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the distal |
and middle |
third of |
the forearm |
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taneus antebrachii medialis. Nerve that arises |
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from the medial cord (C8, T1) and penetrates |
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beneath the flexor carpi ulnaris to innervate the |
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10 |
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dorsum of the hand. B C |
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the fascia at about the middle of the upper arm |
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and accompanies the basilic vein. It supplies |
20 |
Dorsal digital nerves. Nn. digitales dorsales. |
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11 |
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the skin on the medial side of both the distal |
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Individual branches to the little finger, ring fin- |
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upper arm and the forearm. A |
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ger and the ulnar side of the middle finger. This |
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6 Anterior branch. Ramus anterior. It supplies |
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area of innervation can be displaced by the |
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12 |
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radial nerve. B |
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the medial flexor side of the forearm. A |
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7 |
Posterior (ulnar) branch. Ramus posterior [[ul- |
21 Palmar branch of ulnar nerver. Ramus pal- |
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maris nervi ulnaris. Nerve that arises in the dis- |
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naris]]. It supplies the medial upper 2/3 of the |
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tal third of the forearm, penetrates the deep |
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posterior aspect of the forearm. A B |
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fascia and supplies the skin on the palmar sur- |
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8 |
Median nerve. N. medianus. Nerve formed by |
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face of the hand. C |
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the union of medial and lateral roots from the |
22 |
Superficial |
branch. |
Ramus |
superficialis. |
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15 |
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medial and lateral cords (C6−T1). A |
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Branch that courses beneath the palmar |
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9 Medial root. Radix medialis. Part of the median |
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aponeurosis and divides to form the common |
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16 |
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nerve coming from the medial cord with fibers |
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palmar distal nerves and a fine branch to the |
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from C8 and T1. A |
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palmaris brevis. C |
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10 |
Lateral root. Radix lateralis. Part of the median |
23 |
Common palmar digital nerves. Nn. digitales |
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17 |
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nerve arising from the lateral cord with fibers |
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palmares communes. Usually only one branch |
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from C6−7. A |
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which runs in the region between the ring and |
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18 |
11 |
Anterior interosseous nerve of forearm. N. in- |
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little fingers. C |
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24 |
Proper palmar digital nerves. Nn. digitales pal- |
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terosseus |
(antebrachii) |
anterior. |
Nerve that |
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19 |
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arises from the bend of the elbow from the |
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mares proprii. Cutaneous nerves to the little |
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finger and the ulnar side of the ring finger. They |
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posterior side of the median nerve, runs on the |
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interosseous membrane and supplies the |
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also supply the dorsal aspect of the middle and |
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20 |
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distal phalanges of the 11/2 ulnar fingers. C |
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radiocarpal joint, intercarpal joints, flexor polli- |
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cis longus, flexor digitorum profundus (radial |
25 |
Deep branch (of ulnar nerve). Ramus profun- |
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21 |
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part) and pronator quadratus. A |
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dus. Branch that curves around the hamulus to |
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Muscular |
branches. |
Rami |
musculares. |
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supply the |
muscles of |
the hypothenar emi- |
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nence, the interossei, the two ulnar lumbricals, |
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22 |
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Branches that supply the pronator teres, flexor |
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the adductor pollicis and the deep head of the |
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carpi radialis, palmaris longus and flexor digi- |
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flexor pollicis brevis. C |
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torum superficialis muscles. A |
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2313 Palmar branch of median nerve. Ramus palmaris n. mediani. Nerve that arises in the distal
24third of the forearm and supplies the skin of the lateral palm. A
2514 Communicating branch to the ulnar nerve.
Ramus communicans [cum nervo ulnari]. A
Spinal nerves 339
1
2
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11 |
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12 |
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19 |
13 |
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14 |
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21 |
15 |
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16 |
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18
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23 |
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19 |
B |
Cutaneous nerves |
24 |
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of forearm |
20 |
16 |
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21
22
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Nerves of upper limb, frontal view |
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Ulnar nerve |
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A |
C |
23 |
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24 |
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340 |
Spinal nerves |
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1 Radial nerve. N. radialis. Nerve that originates |
13 Axillary nerve. N. axillaris. Nerve that arises |
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1 |
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from the posterior cord (usually with fibers |
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from the posterior cord (C5−6) and passes to- |
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from C5−T1), takes a spiral course around the |
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gether with the posterior circumflex humeral |
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2 |
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posterior aspect of the humerus while within |
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artery through the axilla to the teres minor and |
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the groove for the radial nerve, then proceeds |
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deltoid muscles. D |
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3 |
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laterally between the brachialis and bra- |
14 Muscular branches. Rami musculares. Fibers to |
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chioradialis |
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well as |
both |
extensor carpi |
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radialis muscles. At the elbow it divides to form |
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the teres minor and deltoid muscles. D |
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4 |
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its deep and superficial rami. A B D |
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15 Superior lateral brachial cutaneous nerve. N. |
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2 |
Posterior |
brachial cutaneous |
nerve. N. cu- |
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cutaneus brachii lateralis superior. It supplies |
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the area of the skin located somewhat over the |
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5 |
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taneus brachii |
posterior. |
Small |
cutaneous |
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deltoid muscle. D |
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branch supplying the skin on the extensor side |
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16 |
THORACIC NERVES. Nn. thoracici. Twelve |
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6 |
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of the upper arm. A |
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3 Lateral brachial cutaneous nerve. N. cutaneus |
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thoracic spinal nerves emerging below thoracic |
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vertebrae 1−12, respectively. C |
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brachii laterialis inferior. Second cutaneous |
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17 |
Posterior branches. Rami posteriores. Rami |
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branch for the lateral and dorsal surfaces of the |
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upper arm below the deltoid muscle. A |
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that pass dorsally through the autochthonous |
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8 |
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4 |
Posterior antebrachial cutaneous nerve. N. |
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muscles of the back, then divide to form lateral |
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and medial cutaneous branches. C |
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cutaneus |
antebrachii |
posterior. |
Cutaneous |
18 |
Lateral/medial |
muscular branches. Ramus |
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branch for the field between the lateral and |
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medial antebrachial cutaneous nerves. B |
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muscularis lateralis/medialis. C |
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5 Muscular branches. Rami musculares. Motor |
19 Posterior cutaneous branch. Ramus cutaneus |
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rami to the triceps, anconeus, brachioradialis |
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posterior. C |
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11 |
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and extensor carpi radialis longus muscles. A |
20 Anterior branches (intercostal nerves). Rami |
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6 Deep branch. Ramus profundus. Branch that |
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anteriores (nn. intercostales). Rami forming the |
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intercostal nerves ventrally in the thoracic re- |
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supplies the extensors of the forearm. It pene- |
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gion. C |
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12 |
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trates the supinator, supplying it and all exten- |
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sors (except the extensor carpi radialis longus) |
21 |
Lateral cutaneous branch (pectoral/abdomi- |
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and the abductor pollicis longus. A B |
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nal). Ramus |
cutaneus lateralis (pectoralis/ |
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7 |
Posterior interosseous nerve of forearm. N. |
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abdominalis). Nerve arising from the middle of |
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the intercostal nerve. It passes obliquely ven- |
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interosseus |
(antebrachii) |
posterior. Terminal |
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14 |
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trad and appears between the slips of the serra- |
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branch of the deep ramus that lies on the inter- |
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osseous membrane in the distal third of the |
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tus anterior muscle and the latissimus dorsi. C |
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15 |
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forearm beneath the extensors and extends to |
22 |
Lateral mammary branches. Rami mammarii |
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the wrist joint. A |
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laterales. Rami of lateral cutaneous branches |
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16 |
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8 |
Superficial |
branch. |
Ramus |
superficialis. |
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arising from T4−6 and passing anteriorly to the |
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mammary region. C |
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Branch that runs along the brachioradialis to- |
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17 |
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gether with the radial artery, crosses under its |
23 |
Intercostobrachial nerves. Nn. intercostobr- |
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accompanying muscle and then arrives at the |
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achiales. Lateral cutaneous rami arising usually |
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dorsum of the hand and fingers as a cutaneous |
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from T1, but also from T1−3 and passing to the |
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18 |
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nerve. A B |
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upper arm. C |
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9 Communicating branch to the ulnar nerve. |
24 Anterior cutaneous branch (pectoral/abdomi- |
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19 |
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Ramus communicans ulnaris. It joins the dorsal |
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nal). Ramus |
cutaneus anterior (pectoralis/ |
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ramus of the ulnar nerve on the dorsum and the |
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abdominalis). Branch that emerges medially |
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hand. A |
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and anteriorly and divides to form medial and |
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20 |
10 |
Dorsal digital nerves. Nn. digitales dorsales. |
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lateral branches. C |
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25 |
Medial mammary branches. Rami mammarii |
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Terminal rami of the superficial branch passing |
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21 |
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on the radial and ulnar sides of the extensor |
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mediales. Medial branches from the anterior |
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aspect of the lateral 21/2, sometimes also 31/2 |
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cutaneous rami of intercostal nerves 2−4. C |
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22 |
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fingers. A |
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26 |
Subcostal nerve. N. subcostalis. Anterior |
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11 Subscapular nerves. Nervi subscapulares. Two |
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branch of the 12th thoracic nerve located below |
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to three branches from the brachial plexus (su- |
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the 12th rib. |
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23praclavicular part or posterior cord) supplying the subscapularis and teres major muscles. D
2412 Thoracodorsal nerve. N. thoracodorsalis. Longest subscapular nerve with fibers from C6−
258. It courses along the lateral margin of the scapula and supplies the latissimus dorsi. D
Spinal nerves 341
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Radial nerve |
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Posterior antebrachial |
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Axillary nerve |
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24 |
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cutaneous nerve |
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25