geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

The naris muscles in tiger salamander. II. Innervation as revealed by enzyme histochemistry and immunocytochemistry


, : The naris muscles in tiger salamander. II. Innervation as revealed by enzyme histochemistry and immunocytochemistry. Anatomy and Embryology 205(3): 181-186

The naris muscles control the aperature of the external naris in tiger salamanders, Ambystoma tigrinum, and may contribute to glandular secretion. Autonomic neurons of the palatine ganglion and possibly neurons associated with the nervus terminalis innervate these muscles. To elucidate the neural control of the naris muscles, neurotransmitters in nerve fibers supplying the naris muscles and in neurons of the palatine ganglion were examined using acetylcholinesterase enzyme histochemistry and immunocytochemistry to visualize possible peptide candidates for muscle innervation. The naris muscles, autonomic neurons, and associated nerve fascicles demonstrated strong acetylcholinesterase labeling, and the muscles were innervated by substance P fibers passing through the palatine ganglion from the trigeminal ganglion. Gonadotropin-releasing hormone and molluscan cardioexcitatory peptide-like immunoreactivities were found in secretory cell bodies and/or fibers in the palatine ganglion, and gonadotropin-releasing hormone was found in fiber projection pathways into the muscles. Vasoactive intestinal peptide was found in cell bodies and fibers of the palatine ganglion but appeared to provide a sparse innervation to the naris dilator muscle only. These findings suggest a typical autonomic cholinergic and sensory innervation of the naris muscles with some variations in peptide innervation. The presence of gonadotropin-releasing hormone in palatine ganglion and naris constrictor muscle suggests a potential modulation of autonomic neurons and perhaps even muscle fibers by this neuropeptide. We hypothesize that this reproductive hormone may modulate the activity of the naris constrictor muscle during reproductively appropriate events in order to provide access of pheromones to the vomeronasal organ.

US$19.90

PMID: 12107487

DOI: 10.1007/s00429-002-0243-z


Other references

Stäubert, C.; Bhuiyan, H.; Lindahl, A.; Broom, O.Jay.; Zhu, Y.; Islam, S.; Linnarsson, S.; Lehtiö, J.; Nordström, A., 2015: Rewired metabolism in drug-resistant leukemia cells: a metabolic switch hallmarked by reduced dependence on exogenous glutamine. Cancer cells that escape induction therapy are a major cause of relapse. Understanding metabolic alterations associated with drug resistance opens up unexplored opportunities for the development of new therapeutic strategies. Here, we applied a br...

Druzhinin, S.O., 1989: Ultrasonic dopplerography and photoplethysmography in the diagnosis of Raynaud's syndrome. Data on the studies of the blood flow in finger vessels in 45 patients with Raynaud's disease by means of ultrasonic dopplerography and photoplethysmography are given. The control group consisted of 30 persons. The use of a cryotest showed si...

Pagliarulo, V.; Datar, R.H.; Cote, R.J., 2002: Role of genetic and expression profiling in pharmacogenomics: the changing face of patient management. As the determination of gene sequences and their function gains speed at the dawn of the third millennium, biomedical research efforts are oriented towards definition of the genetic and molecular expression patterns that may drive different diseas...

Dienemann, H.; Hoffmann, H., 2001: Tracheobronchial injuries and fistulas. In association with perforating or blunt trauma, isolated injuries of the trachea and the bronchi are rarely seen. More frequently, however, they occur when adjacent organs or structures are involved, thus creating very complex syndromes. Symptoms...

Johnson L.S., 1981: Current research in self hypnotic phenomenology the chicago paradigm. The research of the Chicago group program is discussed from several viewpoints: as a conceptual and methodological example of what Shor has called the phenomenological method of [human] hypnosis research; in terms of its intent and assumptions wit...

Mahnert, V., 1971: Parasitological studies of alpine small mammals: Parasitic mites (Acari). Revue suisse de zoologie: 78 (4) 909-935

Saunderson Houston C., 1981: Tunnel transformation of antidunes. Physical Geography 2(2): 125-145

White, H.B.Iii, 1978: 3 notable records of odonata from northern new england usa. The capture of 3 Odonata spp. for the New England states [USA] is reported: Aeshna juncea L., Williamsonia fletcheri Will. and Coenagrion interrogatum Hag.

Wilson G.; Steggles A.; Kantor J.A.; Picciano D.; Nienhuis A.; Anderson W.F., 1974: Cell free transcription of globin genes by mammalian dna dependent rna polymerase ii. Federation Proceedings 33(5 PART 2): 1484

Worley, M.J.; Joseph, N.T.; Berkowitz, R.S.; Goldstein, D.P., 2015: Women with a partial mole during their first pregnancy and diagnosed earlier in gestation are at increased risk of developing gestational trophoblastic neoplasia. The aim of this study is to identify factors associated with gestational trophoblastic neoplasia (GTN) after partial molar pregnancy. We retrospectively evaluated clinical data from 111 patients with a partial molar pregnancy between 1995 and 2010...