EurekaMag.com logo
+ Site Statistics
References:
48,253,228
Abstracts:
22,798,842
+ Resolve Accession
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
Submit PDF Full TextSubmit PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Electrophysiological and ultrastructural study of the atrioventricular canal during the development of the chick embryo


, : Electrophysiological and ultrastructural study of the atrioventricular canal during the development of the chick embryo. Journal of Molecular & Cellular Cardiology 18(5): 499-510

The development of the antrioventricular canal (A-V canal) of embryonic chick hearts (35 to 120 h) was studied by morphological and electrophysiological techniques. The earliest identification of the A-V canal action potentials was at 45 to 49 h of incubation coinciding with the atrium formation and the appearance of its corresponding distinctive action potential. At that time the first atrioventricular delay was recorded and its action potentials showed a low rate of rise, particularly at the initiation of the upstroke and a long duration. The conduction velocity was the lowest in the A-V canal. As the development proceeded from 45 to 120 h, the cardiac cells of the A-V canal showed scanty membrane to membrane contacts and large intercellular spaces filled with abundant extracellular matrix components, in striking contrast to the paucity of these components in the atrium and ventricle. The morphological and electrophysiological characteristics described for the A-V canal cells, could help to explain their slow conduction properties and the atrioventricular delay.

Order PDF Full Text

Close
Close

Click here to order any other PDF Full Text


Accession: 005349464

PMID: 3723597

DOI: 10.1016/s0022-2828(86)80915-4

Download PDF Full Text: Electrophysiological and ultrastructural study of the atrioventricular canal during the development of the chick embryo


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Other references

Fumoleau, P.; Giovannini, M.; Rolland, F.; Votan, B.; Paillarse, J.M., 1998: Ondansetron suppository: an effective treatment for the prevention of emetic disorders induced by cisplatin-based chemotherapy. French Ondansetron Study Group. This multicentre, randomised, double-blind, double-dummy, parallel group study was investigated in order to compare on 3 days the efficacy and the safety of the 16 mg once a day (od) ondansetron suppository (suppository group) with the recommended...

Nielsen, P., 1919: Bidrag til on Forteg nelse over jydske Stankelben Nematocera polyneura Tillaeg I Contribu tions to a catalogue of the Crane-flies of Jutland l Supplement. Kobenhavn Flora og Fauna, 33-35

LOHMANN.K.; SCHMIDT.F., 1957: Some characteristics of leukemia-inducing agent from Ehrlich carcinoma filtrates of the mouse. Zeitschrift für Krebsforschung 61(5): 520-526

Shelford J.A.; Tait R.M., 1986: Comparison of distillers grains with solubles from rye and corn in production and digestibility trials with lactating cows and sheep. Dehydrated rye distillers grains with solubles or corn distillers grains with solubles were incorporated into dairy concentrate mixes at the level of 15%. These concentrates were then fed along with alfalfa cubes in a 50/50 mix (as-fed basis) to 1...

Gnanalingham, M.G.; Manns, J.J., 1997: Risk factors in non-insulin dependent diabetes mellitus Relevance to first-degree relatives. Journal of Endocrinology 152(SUPPL ): P83

Slucka R.; Schmoldt P., 1985: Control of slurry following outbreak of acute veterinary epidemics progress report. A progress report is given on slurry control in response to an outbreak of foot-and-mouth disease in no-litter cattle production units. Reference is also made to a complex of measures which should be taken on the basis of experience in the prepara...

Ellis, H., 2004: Medicolegal consequences of adhesions. Postoperative intra-abdominal adhesions are an almost invariable consequence of abdominal and pelvic surgery. Most patients are unaware of their presence, but they may result in morbidity such as acute intestinal obstruction, female infertility an...

Ito, A.; Moy, P.; Kaunitz, H.; Kortwright, K.; Clarke, S.; Furth, J.; Meites, J., 1972: Incidence and character of the spontaneous pituitary tumors in strain CR and W-Fu male rats. Journal of the National Cancer Institute 49(3): 701-711

Allen, J.W.A.; Tomlinson, E.J.; Hong, L.; Ferguson, S.J., 2002: The Escherichia coli cytochrome c maturation (Ccm) system does not detectably attach heme to single cysteine variants of an apocytochrome c. Cytochromes c are typically characterized by the covalent attachment of heme to polypeptide through two thioether bonds with the cysteine residues of a Cys-Xaa-Xaa-Cys-His peptide motif. In many Gram-negative bacteria, the heme is attached to the...

Kim, M-Jeong.; McIntosh, W.A.; Anding, J.; Kubena, K.S.; Reed, D.B.; Moon, G-Soon., 2008: Perceived parenting behaviours predict young adolescents' nutritional intake and body fatness. This study investigated whether perceptions of parenting behaviours predict young adolescents' nutritional intake and body fatness. The randomly selected study sample consisted of 106 13-15 years olds from Houston Metropolitan Statistical Are...