LOCALIZATION AND SEGMENTAL DISTRIBUTION OF SYMPATHETIC PREGANGLIONIC NEURONS IN THE CAT SPINAL CORD PROJECTING TO THE STELLATE GANGLION: HRP STUDY
- VernacularTitle:星状神经节交感节前神经元在脊髓内的定位及节段性分布——HRP法研究
- Author:
Qun LI
;
Zhili TAO
- Publication Type:Journal Article
- From:
Acta Anatomica Sinica
1957;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Horseradish peroxidase (HRP) was injected into the stellate ganglia of anesthetized cats. After 52-72 hour survival time, the animals were perfused and the spinal cord was processed by O-D technique to study the localization and segmental distribution of the sympathetic preganglionic neurons in the spinal cord which project to the stellate ganglia. HRP-labeled neurons in the spinal cord were located exclusively on the side of the injection and were found in five distinct areas:1. nucleus intermediolateralis pars principalis (ILp 76.08%).2. nucleus intermediolateralis pars funicularis (ILf 10.51%).3. anterior horn (AH 5.88%).4. nucleus intercalatus (IC 5.31%).5. nucleus intercalatus pars paraependymalis (ICpe 2.22%).Labeled cells were found in C_8-T_(10) spinal cord segments, with the highest accumulation of cells in T_3 segment. Furthermore, HRP-labeled ILp neurons were detected in C_8-T_(10) spinal cord segments, with a peak at T_3 segment; ILf neurons were seen in 8-T_9, with a peak at T_1 segment; AH neurons were seen in T_1-T_8, with a peak at T_2 segment; IC and ICpe neurons were seen in C_8-T_(10), with a peak at T_6 segment. Stellate ganglion; Sympathetic preganglionic neuron; Spinal cord; HRP method; Cat
