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[Esophageal EMG activity in the pigeon (Columbia livia) in vivo]. 1981

S Abbadessa Urso, and R Fileccia, and A Postorino, and M C Gambino, and F Mulè, and R Serio

The pigeon esophageal smooth muscle shows "spontaneous" rhythmic bursts of spikes with increasing discharge frequency from pharynx to crop. There are no slow waves. The changes of the electric pattern induced by pharmacological administrations of atropine, prostigmine, hexamethonium and by asphyxia suggest that the electric activity is myogenic in origin. The innervation plays a role in the control of this activity and it is essential for the functional polarization.

UI MeSH Term Description Entries
D009130 Muscle, Smooth Unstriated and unstriped muscle, one of the muscles of the internal organs, blood vessels, hair follicles, etc. Contractile elements are elongated, usually spindle-shaped cells with centrally located nuclei. Smooth muscle fibers are bound together into sheets or bundles by reticular fibers and frequently elastic nets are also abundant. (From Stedman, 25th ed) Muscle, Involuntary,Smooth Muscle,Involuntary Muscle,Involuntary Muscles,Muscles, Involuntary,Muscles, Smooth,Smooth Muscles
D009388 Neostigmine A cholinesterase inhibitor used in the treatment of myasthenia gravis and to reverse the effects of muscle relaxants such as gallamine and tubocurarine. Neostigmine, unlike PHYSOSTIGMINE, does not cross the blood-brain barrier. Synstigmin,Neostigmine Bromide,Neostigmine Methylsulfate,Polstigmine,Proserine,Prostigmin,Prostigmine,Prozerin,Syntostigmine,Bromide, Neostigmine,Methylsulfate, Neostigmine
D010856 Columbidae Family in the order COLUMBIFORMES, comprised of pigeons or doves. They are BIRDS with short legs, stout bodies, small heads, and slender bills. Some sources call the smaller species doves and the larger pigeons, but the names are interchangeable. Columba livia,Doves,Pigeons,Domestic Pigeons,Feral Pigeons,Rock Doves,Rock Pigeons,Domestic Pigeon,Dove,Dove, Rock,Doves, Rock,Feral Pigeon,Pigeon,Pigeon, Domestic,Pigeon, Feral,Pigeon, Rock,Pigeons, Domestic,Pigeons, Feral,Pigeons, Rock,Rock Dove,Rock Pigeon
D004576 Electromyography Recording of the changes in electric potential of muscle by means of surface or needle electrodes. Electromyogram,Surface Electromyography,Electromyograms,Electromyographies,Electromyographies, Surface,Electromyography, Surface,Surface Electromyographies
D004947 Esophagus The muscular membranous segment between the PHARYNX and the STOMACH in the UPPER GASTROINTESTINAL TRACT.
D006584 Hexamethonium Compounds Compounds containing the hexamethylenebis(trimethylammonium) cation. Members of this group frequently act as antihypertensive agents and selective ganglionic blocking agents. Compounds, Hexamethonium
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001237 Asphyxia A pathological condition caused by lack of oxygen, manifested in impending or actual cessation of life. Suffocation,Asphyxias,Suffocations
D001285 Atropine An alkaloid, originally from Atropa belladonna, but found in other plants, mainly SOLANACEAE. Hyoscyamine is the 3(S)-endo isomer of atropine. AtroPen,Atropin Augenöl,Atropine Sulfate,Atropine Sulfate Anhydrous,Atropinol,Anhydrous, Atropine Sulfate,Augenöl, Atropin,Sulfate Anhydrous, Atropine,Sulfate, Atropine
D018738 Hexamethonium A nicotinic cholinergic antagonist often referred to as the prototypical ganglionic blocker. It is poorly absorbed from the gastrointestinal tract and does not cross the blood-brain barrier. It has been used for a variety of therapeutic purposes including hypertension but, like the other ganglionic blockers, it has been replaced by more specific drugs for most purposes, although it is widely used a research tool. Depressin,Hexamethonium Bitartrate,Hexamethonium Bromide,Hexamethonium Chloride,Hexamethonium Dibromide,Hexamethonium Dibromide Dihydrate,Hexamethonium Dichloride Dihydrate,Hexamethonium Dihydroxide,Hexamethonium Diiodide,Hexamethonium Dimethylsulfate,Hexamethonium Diperchlorate,Hexamethonium Iodide,Hexamethonium Monotartrate,Hexonium,Bitartrate, Hexamethonium,Bromide, Hexamethonium,Chloride, Hexamethonium,Dibromide Dihydrate, Hexamethonium,Dibromide, Hexamethonium,Dichloride Dihydrate, Hexamethonium,Dihydrate, Hexamethonium Dibromide,Dihydrate, Hexamethonium Dichloride,Dihydroxide, Hexamethonium,Diiodide, Hexamethonium,Dimethylsulfate, Hexamethonium,Diperchlorate, Hexamethonium,Iodide, Hexamethonium,Monotartrate, Hexamethonium

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