nerve process
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2012 ◽  
Vol 11 (3) ◽  
pp. 192
Author(s):  
Saifuddin Kusuma N ◽  
Fonny Dahong ◽  
Muh. Ruslin

Since the inroduction of disposable needles, breakage of needles within tissues have become extremely rare.However, reports of needle breakage still appear. This paper discussed the cause of needle breakage, problem ofneedle breakage, prevention of needle breakage, and management of needle breakage. If the needle broken duringanesthesia of the alveolar dental nerve process, the needle will probably be located in the pterygomandibular space.It can migrate to vital structure.


2006 ◽  
Vol 43 (1) ◽  
pp. 3-5 ◽  
Author(s):  
C. Duggal ◽  
H. Kaur

AbstractSEM studies on the cloacal opening of Oesophagostomum columbianum indicate that it is located on a raised conical structure called the “genital cone”. The genital cone is provided with a ventral lip and a pair of subdorsal gential appendages. The vental lip is a triangular structure having a single papilla on it and the genital appendages are covered with wrinkled cuticle with a nerve process projecting to the exterior in center. The bursa is supported by muscular rays which end up as knob-like sessile genital papillae. The inner surface of the bursa is porous. Spicules are two, equal, each provided with an ala which decreases in height distally and end up much prior to the spicular tip.


1963 ◽  
Vol 16 (1) ◽  
pp. 159-170 ◽  
Author(s):  
Toshiyuki Yamamoto

Electron microscope observations of abdominal sympathetic ganglia of American bullfrogs, Rana catesbiana, have demonstrated the presence of specific areas of cytoplasm in the superficial zone of the perikaryon which are devoid of granulated endoplasmic reticulum. These areas are occupied almost exclusively by granules 200 to 400 A in diameter which can be stained intensely with lead hydroxide but faintly with uranyl acetate. Each granule shows subgranular internal structure after the lead staining. Granules of similar properties are found in synapses also, and may be glycogen. From the satellite cell there extends a number of leaf- or finger-like cytoplasmic projections around the root portion of the nerve process. Some of these projections directly cover the surface of the nerve process. Many others, however, are separated from the neuron by a fairly wide interspace. Multivesicular bodies of the neuron are occasionally observed in a configuration which suggests that they are being extruded from the root of the nerve process into the interspace. Filaments about 100 A in thickness are found in the satellite cell cytoplasm. They are arranged more or less parallel to each other and are especially well developed around synapses and nerve fibers.


Development ◽  
1959 ◽  
Vol 7 (2) ◽  
pp. 128-145
Author(s):  
Arthur Hughes

In 1913 G. E. Coghill initiated a series of papers on the neuro-embryology of the Urodele Ambystoma with a description of the earliest stages of the motor system of the trunk (Coghill, 1913). His main conclusion is stated early in the paper in these words: The neurones … which establish the earliest contact with the cells of the myotome are found in Amblystoma to be at the same time the neurones of the motor tract in the central nervous system. The primary ventral root fibre is a collateral of the tract cell. (Coghill, 1913, p. 121.) Thirteen years later, among a group of other papers on the developing nervous system of Ambystoma, he returned to this theme, and in a series of examples described the form of the first nerve process within the basal plate of the cord.


1918 ◽  
Vol 25 (6) ◽  
pp. 423-442 ◽  
Author(s):  
E. C. Tolman
Keyword(s):  

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