Effects of oxygen on the cercal receptors of the cockroach Periplaneta americana

Patterns of monosynaptic input to the giant interneurons 1?3 in the cereal system of the adult cockroach

“…The intensity and duration of the stimuli were adjusted so as to produce small receptor potentials with only one superimposed spike. In vitro, the filiform sensilla do not remain fully functional unless they are continuously oxygenated (Hamon and Guillet 1986). This was done by blowing Oz above the cercus at a low flow rate (0.2 1/min).…”

Patterns of monosynaptic input to the giant interneurons 1?3 in the cereal system of the adult cockroach

“…The intensity and duration of the stimuli were adjusted so as to produce small receptor potentials with only one superimposed spike. In vitro, the filiform sensilla do not remain fully functional unless they are continuously oxygenated (Hamon and Guillet 1986). This was done by blowing Oz above the cercus at a low flow rate (0.2 1/min).…”

Ionic Mechanisms Underlying Depolarizing Responses of an Identified Insect Motor Neuron to Short Periods of Hypoxia

“…O 2 rather than air was bubbled through the saline because more negative than the normal resting potential. In 58% the PO 2 level attained with air was judged too low and because Hamon and Guillet (1986) previously demonstrated that the electri-(n Å 51) of neurons, this hyperpolarization was followed cal activity of oxygenated cockroach nerve cords recorded in vitro by a transient depolarization (3-7 mV) before the membrane is similar to that recorded in situ. To determine both the steadypotential settled to a steady level (Fig.…”

A gradient of synaptic efficacy and its presynaptic basis in the cercal system of the cockroach

“…The micropipette was mounted on an electromagnetic stylet driven by a stimulator, so that it could also be used for mechanical stimulation of the sensory cell. The sensory activity, which was very sensitive to hypoxia (Hamon and Guillet 1986), was maintained by blowing 02 above the cereus.…”

Patterns of monosynaptic input to the giant interneurons 1?3 in the cereal system of the adult cockroach

“…The intensity and duration of the stimuli were adjusted so as to produce small receptor potentials with only one superimposed spike. In vitro, the filiform sensilla do not remain fully functional unless they are continuously oxygenated (Hamon and Guillet 1986). This was done by blowing Oz above the cercus at a low flow rate (0.2 1/min).…”

Ionic Mechanisms Underlying Depolarizing Responses of an Identified Insect Motor Neuron to Short Periods of Hypoxia

“…O 2 rather than air was bubbled through the saline because more negative than the normal resting potential. In 58% the PO 2 level attained with air was judged too low and because Hamon and Guillet (1986) previously demonstrated that the electri-(n Å 51) of neurons, this hyperpolarization was followed cal activity of oxygenated cockroach nerve cords recorded in vitro by a transient depolarization (3-7 mV) before the membrane is similar to that recorded in situ. To determine both the steadypotential settled to a steady level (Fig.…”

A gradient of synaptic efficacy and its presynaptic basis in the cercal system of the cockroach

“…The micropipette was mounted on an electromagnetic stylet driven by a stimulator, so that it could also be used for mechanical stimulation of the sensory cell. The sensory activity, which was very sensitive to hypoxia (Hamon and Guillet 1986), was maintained by blowing 02 above the cereus.…”

Patterns of monosynaptic input to the giant interneurons 1?3 in the cereal system of the adult cockroach

“…The intensity and duration of the stimuli were adjusted so as to produce small receptor potentials with only one superimposed spike. In vitro, the filiform sensilla do not remain fully functional unless they are continuously oxygenated (Hamon and Guillet 1986). This was done by blowing Oz above the cercus at a low flow rate (0.2 1/min).…”

Ionic Mechanisms Underlying Depolarizing Responses of an Identified Insect Motor Neuron to Short Periods of Hypoxia

“…O 2 rather than air was bubbled through the saline because more negative than the normal resting potential. In 58% the PO 2 level attained with air was judged too low and because Hamon and Guillet (1986) previously demonstrated that the electri-(n Å 51) of neurons, this hyperpolarization was followed cal activity of oxygenated cockroach nerve cords recorded in vitro by a transient depolarization (3-7 mV) before the membrane is similar to that recorded in situ. To determine both the steadypotential settled to a steady level (Fig.…”

A gradient of synaptic efficacy and its presynaptic basis in the cercal system of the cockroach

“…The micropipette was mounted on an electromagnetic stylet driven by a stimulator, so that it could also be used for mechanical stimulation of the sensory cell. The sensory activity, which was very sensitive to hypoxia (Hamon and Guillet 1986), was maintained by blowing 02 above the cereus.…”