Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1977 Jun;149(2):277-82.
doi: 10.1002/aja.1001490210.

The fenestrated collar of mammalian cardiac sarcoplasmic reticulum: a freeze-fracture study

W B Van Winkle

The fenestrated collar of mammalian cardiac sarcoplasmic reticulum: a freeze-fracture study

W B Van Winkle. Am J Anat. 1977 Jun.

Abstract

Freeze-fracture studies of papillary muscles from cat, rabbit and dog reveal the presence of a fenestrated collar of the sarcoplasmic reticulum (SR) in the region of the M band. This membrane specialization is structurally similar to that observed previously in skeletal muscle. This report includes mammalian cardiac muscle on the list of those muscles containing this SR membrane structure.

PubMed Disclaimer

Publication types

LinkOut - more resources