|
| |
|
|
|
|
||||
| Home Help Feedback Subscriptions Archive Search Table of Contents | ||||
|
Fig. 1. Recording of the ventilatory rhythm at room temperature, at hyperthermic
failure, and at recovery of ventilatory motor pattern generation in the
locust. (A) Simultaneous recording of the temperature of the superfusing
saline at the MTG (Temp) and the ventilatory motor pattern recorded from
muscle 161 in the second abdominal segment (M161). Areas marked B-E are shown
in expanded form below. (B) A section of the ventilatory rhythm during the
first 20 min while the preparation was allowed to stabilize at room
temperature. (C) Heat-induced failure of motor pattern generation. The arrow
indicates where failure of motor patterning was determined. The burst of
electrical activity following hyperthermic failure of the rhythm is typical
and usually marks the cessation of all electrical activity. (D) Post-stress
recovery of the ventilatory rhythm. The arrow indicates where recovery of the
rhythm was determined. (E) The rhythm returns to normal shortly following
recovery. (F) Expansion of bursts displaying intraburst activity. Mean
ventilatory frequencies were obtained by calculating the inverse of the cycle
period (1/P) for all bursts and calculating the average of these
values.
|
