An official website of the United States government
Here's how you know
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Scanning electron microscopy. Micrograph of a cross-section of skeletal muscle matrix formed (A) in vitro, and (B) 20 minutes post-subcutaneous injection. Note the formation of the assembled fibers on the nano- and micro- scale. Scale bar at 100 μm.