Relationships between the tubular system in the globules of the coronet cells of the saccus vasculosus and the cerebrospinal fluid in Gasterosteus aculeatus form leiurus (Teleostei)

1982 ◽  
Vol 224 (1) ◽  
pp. 105-115 ◽  
Author(s):  
Ernest Foll�nius
Keyword(s):  
Cerebrospinal Fluid ◽  
Gasterosteus Aculeatus ◽  
Saccus Vasculosus ◽  
Tubular System

The Histophysiology of the Saccus Vasculosus of Notopterus Chitala (Teleostei)

1963 ◽  
Vol s3-104 (68) ◽  
pp. 465-469
Author(s):  
BANGALORE I. SUNDARARAJ ◽  
M. R. N. PRASAD
Keyword(s):  
Cerebrospinal Fluid ◽  
Body Weight ◽  
Blood Glucose ◽  
Physiological Activity ◽  
Saccus Vasculosus ◽  
Glucose Administration ◽  
Glucose Levels ◽  
Blood Glucose Levels ◽  
Comparison Of The Results ◽  
Different Parts

The apical protrusions of the coronet cells of the saccus vasculosus in Notopterus chitala contain glycogen which passes through the hairs into the globules. In spite of the availability of normal blood-glucose levels in fed controls, only a few cells in the loculi show glycogen; thus there are individual differences in the physiological activity of the cells. Specific variations in the distribution of glycogen in the different parts of the coronet cells were observed under conditions of starvation and glucose administration. Starvation for 48 h resulted in depletion of glycogen unidirectionally from the apical protrusion towards the globules. Fish starved for 46, 44, and 42 h were injected intraperitoneally 20% glucose (2 g of glucose per kg of body-weight) and autopsied 2, 4, and 6 h respectively after glucose administration. Comparison of the results obtained with starved fish injected with glucose suggests the gradual conversion of blood-glucose into glycogen. This conversion appears to begin at the base of the cell-body and to move towards the apical protrusion. The saccus vasculosus in Notopterus chitala is possibly a source of glucose for the cerebrospinal fluid.

Traumatic Cerebrospinal Fluid Leakage

1983 ◽  
Vol 16 (3) ◽  
pp. 623-632 ◽  
Author(s):  
James Ryan Chandler
Keyword(s):  
Cerebrospinal Fluid ◽  
Cerebrospinal Fluid Leakage ◽  
Fluid Leakage
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