An ultrastructural study of sinuatrial node cells in the embryonic rat heart

Sinuatrial nodal tissue, obtained from rat embryos of 15, 16 and 17 days, was examined with the electron microscope. Embryonic nodal cells were generally similar to adult cells except that (1) they showed thick prolongations of the cytoplasm which insinuated themselves between neighbouring cells; (2...

Full description

Saved in:
Bibliographic Details
Published in:Journal of anatomy 1975-02, Vol.119 (Pt 1), p.77-83
Main Authors: Domenech-Mateu, J M, Boya-Vegué, J
Format: Article
Language:English
Subjects:
Animals
Basement Membrane - ultrastructure
Cell Nucleus - ultrastructure
Chromatin - ultrastructure
Cytoplasm - ultrastructure
Endoplasmic Reticulum - ultrastructure
Golgi Apparatus - ultrastructure
Mitochondria - ultrastructure
Myofibrils - ultrastructure
Pinocytosis
Rats
Ribosomes - ultrastructure
Sinoatrial Node - embryology
Sinoatrial Node - ultrastructure
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Sinuatrial nodal tissue, obtained from rat embryos of 15, 16 and 17 days, was examined with the electron microscope. Embryonic nodal cells were generally similar to adult cells except that (1) they showed thick prolongations of the cytoplasm which insinuated themselves between neighbouring cells; (2) they possessed osmiophilic granules with a predeliction for the region of the Golgi complex; (3) they exhibited a lesser and variable degree of pinocytosis.
ISSN:0021-8782
1469-7580