Intrinsic innervation of the avian heart

1971 ◽  
Vol 79 (1) ◽  
pp. 112-119 ◽  
Author(s):  
R.B. Smith
Keyword(s):  
Intrinsic Innervation

Mechanism of propagation of canine migrating motor complex--a reappraisal

1981 ◽  
Vol 240 (2) ◽  
pp. G141-G146
Author(s):  
H. S. Ormsbee ◽  
G. L. Telford ◽  
C. M. Suter ◽  
P. D. Wilson ◽  
G. R. Mason
Keyword(s):  
Small Intestine ◽  
Migrating Motor Complex ◽  
Propagation Time ◽  
Proximal Jejunum ◽  
Tolerance Limits ◽  
Distal Intestine ◽  
Motor Complex ◽  
Force Transducers ◽  
Intrinsic Innervation ◽  
Proximal Intestine

This study quantitatively evaluated the characteristics of the aboral propagation of the canine migrating motor complex (MMC). Five conscious dogs were implanted with extraluminal force transducers along the small intestine. After constructing a 30-cm Thirty-Vella loop of jejunum, 56 of 91 activity fronts were outside the tolerance limits for propagation from the proximal intestine to the loop established in the same dogs before operation. Similarly, 44 of 109 activity fronts were outside the tolerance limits for propagation from the loop to the distal intestine. After surgery, the propagation time from the proximal jejunum to the loop was significantly increased, and activity fronts were observed to originate in the loop and in the intestine distal to the anastomosis. Our study indicates that the hypothesis that extrinsic nerves alone control the migration of the MMC is incomplete. We suggest that the extrinsic and the intrinsic innervation of the gastrointestinal tract are both required for the precise pattern of the migration of the MMC.

Source of intrinsic innervation of canine ventricles: a functional study

1987 ◽  
Vol 252 (3) ◽  
pp. H638-H644 ◽  
Author(s):  
T. M. Blomquist ◽  
D. V. Priola ◽  
A. M. Romero
Keyword(s):  
Cardiopulmonary Bypass ◽  
Ganglion Cells ◽  
Functional Study ◽  
Beta Blockade ◽  
Parasympathetic Innervation ◽  
Intrinsic Innervation ◽  
Series Of Experiments ◽  
Intrinsic Cardiac Nerves ◽  
Cardiac Nerves

Recently it has been suggested that the parasympathetic innervation of the ventricles is by way of postganglionic axones that emanate from ganglion cells in the atria, reaching the ventricles by traversing the atrioventricular (AV) groove. We designed a series of experiments to test this hypothesis. Phenol (89%) was applied to the AV groove and surrounding 5 mm of epicardium in 21 dogs on cardiopulmonary bypass. The effects of intracoronary acetylcholine (ACh; 1-5 micrograms) and intracoronary nicotine (NIC; 25–100 micrograms) on cardiac isovolumic pressures were evaluated after beta-blockade. In another series of experiments, eight dogs were exposed to phenol in the same way and allowed to recover for 7–10 days. Atrial and ventricular responses to NIC were unaffected by phenol application to the AV groove in the acute animals when compared with application of saline alone. However, in the chronic animals, pretreatment with phenol 7–10 days previously reduced the ventricular responses to NIC by 70% while leaving the atrial responses intact. These data indicate that the intrinsic cardiac nerves (ICN) of the canine ventricles consist primarily of postganglionic parasympathetic axones which arise from supraventricular ganglia and cross the AV groove.

Intrinsic innervation of the gall bladder in the dog

1975 ◽  
Vol 92 (3) ◽  
pp. 411-416 ◽  
Author(s):  
N.N.Y. Nawar ◽  
I. Kamel
Keyword(s):  
Gall Bladder ◽  
Intrinsic Innervation

Intrinsic innervation of the horse ileum

2009 ◽  
Vol 87 (2) ◽  
pp. 177-185 ◽  
Author(s):  
Roberto Chiocchetti ◽  
Cristiano Bombardi ◽  
Caterina Mongardi-Fantaguzzi ◽  
Elena Venturelli ◽  
Domenico Russo ◽  
...  
Keyword(s):  
Intrinsic Innervation

scholarly journals Intrinsic innervation patterns of the smooth muscle in the rumen and reticulum of lambs

2004 ◽  
Vol 204 (4) ◽  
pp. 293-299 ◽  
Author(s):  
Helga Pfannkuche ◽  
Corinna Schellhorn ◽  
Michael Schemann ◽  
Gotthold Gabel
Keyword(s):  
Smooth Muscle ◽  
Intrinsic Innervation ◽  
Innervation Patterns

Intrinsic Innervation of the Oesophagus in Dogs with Special Reference to the Presence of Muscle Spindles

1983 ◽  
Vol 115 (1) ◽  
pp. 91-96 ◽  
Author(s):  
K. Asaad ◽  
Sawsan Abd-El Rahman ◽  
Nabil N.Y. Nawar ◽  
Y. Mikhail
Keyword(s):  
Special Reference ◽  
Muscle Spindles ◽  
Intrinsic Innervation
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