SYMPATHETIC AND AFFERENT NEURONS PROJECTING INTO FORELIMB AND TRUNK NERVES AND THE ANATOMICAL ORGANIZATION OF THE THORACIC SYMPATHETIC OUTFLOW OF THE RAT

被引：34

作者：

BARON, R ^{[1
]}

JANIG, W ^{[1
]}

WITH, H ^{[1
]}

机构：

[1] CHRISTIAN ALBRECHTS UNIV KIEL,INST PHYSIOL,D-24098 KIEL,GERMANY

来源：

JOURNAL OF THE AUTONOMIC NERVOUS SYSTEM | 1995年 / 53卷 / 2-3期

关键词：

RETROGRADE TRACING; SENSORY NEURON; POSTGANGLIONIC NEURON; SOMATIC NERVE;

D O I：

10.1016/0165-1838(94)00171-F

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

The anatomy of the cervicothoracic sympathetic nerves was studied in the rat. Details of the arrangements of white and grey rami communicantes and superior cervical, middle cervical and stellate ganglia are given. Dorsal root and sympathetic ganglion neurones projecting to skin and muscle of the forelimb and trunk were labelled retrogradely with horseradish peroxidase (HRP) in order to study their number, segmental distribution and location. HRP was applied to forelimb nerves supplying skeletal muscles (Ramus profundus of radial nerve, RP) or hairy skin (N. cutaneus brachii lateralis superior of axillary nerve, CB), to mixed nerves (median nerve, ME; ulnar nerve, UL; radial nerve, RA) and to segmental thoracic nerves supplying hairy skin of the back (dorsal cutaneous nerve, CD) and to mixed internal intercostal nerves (IC). All sensory and sympathetic neurones were located ipsilaterally. In the forelimb nerves sensory somata were commonly restricted to two or three adjacent dorsal root ganglia (usually C6-7 for CB; C7-8 for ME; C7-Th1 for RA and RP; C8-Th1 for UL). Nearly all of the sympathetic somata were located in the middle cervical and stellate ganglia (fusion of C6-Th3). Some 0-0.4% lay in Th4 and Th5, none in the superior cervical ganglia. In the trunk nerves sensory somata were strictly segmentally organized. Sympathetic somata were distributed more widely over 4-5 segments with 50-55% in the segmental ganglion and up to 41% in the next caudal segment. From the data, it is estimated that 400 sympathetic (28%) and 1050 afferent neurones project into CB, 1660 (29%) and 4050 into RA, 540 (42%) and 760 into RP, 1010 (22%) and 3670 into ME, 880 (22%) and 3040 into UL, 350 (25%) and 1040 into IC and 500 (27%) and 1370 into CD.

引用

页码：205 / 214

页数：10

共 33 条

[1]

Ammann, Gottschall, Zenker, Afferent projections from the rat longus capitis muscle studied by transganglionic transport of HRP, Anat. Embryol., 166, pp. 275-289, (1983)

[2]

Armour, Anatomy and function of thoracic cardiac neurons, Neurology and Neurobiology, Volume 31, Organization of the autonomic nervous system. Central and peripheral mechanisms, pp. 67-77, (1987)

[3]

Baljet, Drukker, The extrinsic innervation of the abdominal organs in the female rat, Acta Anat., 104, pp. 243-267, (1979)

[4]

Baron, Janig, Afferent and sympathetic neurons projecting into lumbar visceral nerves of the male rat, J. Comp. Neurol., 314, pp. 429-436, (1991)

[5]

Baron, Janig, Kollmann, Sympathetic and afferent somata projecting in hindlimb nerves and the anatomical organization of the lumbar sympathetic nervous system of the rat, J. Comp. Neurol., 275, pp. 460-468, (1988)

[6]

Baron, Janig, McLachlan, The afferent and sympathetic components of the lumbar spinal outflow to the colon and pelvic organs in the cat. I. The hypogastric nerve, J. Comp. Neurol., 238, pp. 135-146, (1985)

[7]

Baron, Janig, McLachlan, The afferent and sympathetic components of the lumbar spinal outflow to the colon and pelvic organs in the cat. II. The lumbar splanchni nerves, J. Comp. Neurol., 238, pp. 147-157, (1985)

[8]

Baron, Janig, McLachlan, The afferent and sympathetic components of the lumbar spinal outflow to the colon and pelvic organs in the cat. III. The colonic nerves, incorporating an analysis of all components of the lumbar prevertebral outflow, J. Comp. Neurol., 238, pp. 158-168, (1985)

[9]

Baron, Janig, McLachlan, On the anatomical organization of the lumbosacral sympathetic chain and the lumbar splanchnic nerves of the cat — langley revisited, J. Auton. Nerv. Syst., 12, pp. 289-300, (1985)

[10]

Coggeshall, A consideration of neural counting methods, Trends Neurosci., 15, pp. 9-13, (1992)

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