Large ionic gradients must be maintained across the blood-brain barrier system of Carausius morosus, for the neurones are apparently conventional in their ionic require-ments (Treherne & Maddrell, 1967; Weidler & Diecke, 1969) while the haemolymph has been found to contain ionic concentrations as adverse as 9 mM-Na, 28 min-K and 73 mM-Mg (Duchateau, Florkin & Leclerq, 1953). The ionic permeability of the system is here examined in the manner of Pichon, Moreton & Treherne (1971), by observing changes in extraneuronal potential produced by an alteration in the ionic composition of the saline bathing the first pair of thoracic connectives (from adults) from which the fat-body sheath had been removed. (The fat body has been show...
The abnormal ionic composition of the haemolymph of some phytophagous insects is difficult to reconc...
Specialized areas of the body surface are implicated in water and ionic uptake in many insects (Nutm...
In an earlier investigation it was demonstrated that the exchange of sodium and potassium ions betwe...
It is well established that the neurones of the insect central nervous system are protected from the...
Two conflicting hypotheses have been advanced to explain the remarkable ability of the neurones of s...
Aim of this study was to determine the ionic concentration gradients at the cellular membrane level ...
In the period between 1950 and i960 there were a number of reports of the relative insensitivity of ...
The chemical composition of the fluid surrounding the cells of the central nervous system of Peripla...
Earlier studies carried out in this laboratory have demonstrated the existence of rapid and relative...
The tissues of insects are bathed freely in haemolymph, and the relationship between the ionic compo...
Our understanding of the ionic basis of axonal conduction has been largely derived from studies carr...
The extremely specialized ionic composition of the haemolymph in some phyto-phagous insect species p...
The ability of Artemia salina, the brine shrimp, to maintain haemolymph ion con-centrations which ar...
The apparent activity coefficients for sodium (y'Na) in the blood of six insect species have be...
The exchanges of sodium and potassium ions and of sugar molecules between the haemolymph and the cen...
The abnormal ionic composition of the haemolymph of some phytophagous insects is difficult to reconc...
Specialized areas of the body surface are implicated in water and ionic uptake in many insects (Nutm...
In an earlier investigation it was demonstrated that the exchange of sodium and potassium ions betwe...
It is well established that the neurones of the insect central nervous system are protected from the...
Two conflicting hypotheses have been advanced to explain the remarkable ability of the neurones of s...
Aim of this study was to determine the ionic concentration gradients at the cellular membrane level ...
In the period between 1950 and i960 there were a number of reports of the relative insensitivity of ...
The chemical composition of the fluid surrounding the cells of the central nervous system of Peripla...
Earlier studies carried out in this laboratory have demonstrated the existence of rapid and relative...
The tissues of insects are bathed freely in haemolymph, and the relationship between the ionic compo...
Our understanding of the ionic basis of axonal conduction has been largely derived from studies carr...
The extremely specialized ionic composition of the haemolymph in some phyto-phagous insect species p...
The ability of Artemia salina, the brine shrimp, to maintain haemolymph ion con-centrations which ar...
The apparent activity coefficients for sodium (y'Na) in the blood of six insect species have be...
The exchanges of sodium and potassium ions and of sugar molecules between the haemolymph and the cen...
The abnormal ionic composition of the haemolymph of some phytophagous insects is difficult to reconc...
Specialized areas of the body surface are implicated in water and ionic uptake in many insects (Nutm...
In an earlier investigation it was demonstrated that the exchange of sodium and potassium ions betwe...