scholarly journals Effects of ammonia on lung stretch receptor activity in the rabbit.

1987 ◽  
Vol 37 (5) ◽  
pp. 911-921 ◽  
Author(s):  
Shigeji MATSUMOTO
Keyword(s):  
Stretch Receptor ◽  
Receptor Activity ◽  
Lung Stretch

scholarly journals Pulmonary Stretch Receptor Activity during Partial Liquid Ventilation in Cats with Healthy Lungs

Neonatology ◽  
2004 ◽  
Vol 86 (2) ◽  
pp. 73-80 ◽  
Author(s):  
Esther Rieger-Fackeldey ◽  
Richard Sindelar ◽  
Anders Jonzon ◽  
Andreas Schulze ◽  
Gunnar Sedin
Keyword(s):  
Stretch Receptor ◽  
Receptor Activity ◽  
Partial Liquid Ventilation ◽  
Liquid Ventilation ◽  
Pulmonary Stretch Receptor

Pulmonary afferent control of breathing as end-expiratory lung volume decreases

1990 ◽  
Vol 68 (5) ◽  
pp. 2186-2194 ◽  
Author(s):  
J. F. Green ◽  
M. P. Kaufman
Keyword(s):  
Lung Volume ◽  
Breathing Pattern ◽  
Blood Gases ◽  
Transpulmonary Pressure ◽  
Stretch Receptor ◽  
Receptor Activity ◽  
Vagal Afferents ◽  
Vagal Nerves ◽  
Residual Capacity ◽  
Alpha Chloralose

We studied reflex changes in breathing elicited by graded reductions in end-expiratory lung volume (EEVL) and the vagal nerves responsible. The chests of nine dogs anesthetized with alpha-chloralose were opened, and the lungs were ventilated by a phrenic nerve-driven servo-respirator. The immediate effects of a 50% reduction in end-expiratory transpulmonary pressure (EEPtp) from control (EEVL equivalent to functional residual capacity) were to significantly increase both tidal volume (VT) and breathing frequency (f) from 0.402 +/- 0.101 to 0.453 +/- 0.091 liter (mean +/- SD) and 11.8 +/- 5.4 to 15.7 +/- 6.4 breaths/min, respectively (P less than 0.05). Further reductions in EEPtp to 0 cmH2O did not change VT but augmented f to 19.6 +/- 6.6 breaths/min (P less than 0.05). The increase in f as EEVL decreased was due entirely to a reduction in expiratory time. Vagotomy abolished these reflexes. By 90 s after reduction in EEVL, arterial PCO2 fell significantly and VT returned to or below control values. We therefore repeated these experiments in five dogs whose blood gases were controlled by cardiopulmonary bypass. There were no secondary changes in VT and by 90 s breathing pattern could be characterized as rapid and deep. In another eight dogs submitted to the same collapse protocol, we recorded action potentials from all known categories of pulmonary vagal afferents. These studies demonstrated that the changes in breathing pattern induced by a 50% reduction in EEPtp were due to a withdrawal of slowly adapting stretch receptor activity; however, continued increases in f as EEVL was reduced further were due to increases in rapidly adapting stretch receptor activity.(ABSTRACT TRUNCATED AT 250 WORDS)

Cholinergic and H1-receptor influences of histamine on slowly adapting pulmonary stretch receptor activity in the rabbit

1992 ◽  
Vol 40 (2) ◽  
pp. 107-120 ◽  
Author(s):  
Shigeji Matsumoto ◽  
Tadanori Nagayama ◽  
Masao Yamasaki ◽  
Takahiro Kanno ◽  
Tsuyoshi Shimizu
Keyword(s):  
Stretch Receptor ◽  
Receptor Activity ◽  
H1 Receptor ◽  
Pulmonary Stretch Receptor
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