Z discs is the term used
to refer to narrow plate-shaped regions that separate
neighboring sarcomeres.
(Sacromeres are the small structural units that, arranged end-to-end,
form myofibrils, one
of the functional components within muscle cells.)
The proteins at the junctions
between sarcomeres form the "Z-Discs", which are sometimes referred
to as " Z Lines" (US English).
Above:
Diagram of the unit within a muscle cell that is known as a sarcomere.
The Z Discs are a relatively darker area within the sarcomere
that extends along the total length of the thick
filaments.
For further information about Z Disc(s) visit
Indiana State
University.
This Section consists of short summaries about the
structures that form the muscles of the body.
This list is not exhaustive but is intended to be appropriate for students
of A-Level Human Biology, ITEC courses in massage and related subjects,
and some other courses in Health Sciences.
For more general information about Muscles see
the pages about: Anterior
Muscles, Posterior
Muscles, Facial
Muscles, Terminology
about Muscles, and the Structure
of Muscles. |
