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There are two types of muscle filaments.
They are called thick
filaments and thin
filaments.
Together, these two types of protein filaments form cylindrical structures
called myofibrils.
The thin filaments and thick filaments within the myofibrils overlap in
defined patterns that form units called sarcomeres.
Above: Diagram of the unit within a muscle cell that is known as a sarcomere.
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.
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