Physiology ToS questions Flashcards
What are the four classifications of electromagnetic frequency bands of skeletal and cardiac muscles?
A band
H band
I band
M band
A type of electromagnetic frequency band of skeletal and cardiac muscles that is the region within a sarcomere where thick filaments (myosin) overlap with thin filaments (actin)
A band
A type of electromagnetic frequency band of skeletal and cardiac muscles that is the zone of thick filaments (myosin) that has no actin overlap. Adjacent to the M line and appears lighter in the sarcomere because it lacks actin
H band
A type of electromagnetic frequency band of skeletal and cardiac muscles that is the area adjacent to the Z-line, where actin is not superimposed by myosin. This is the region where thin filaments (actin) are not over lapped by thick filaments (myosin)
I band
A type of electromagnetic frequency band of skeletal and cardiac muscles that is the thin, middle line within the sarcomeres that appears in electron microscopy. It is formed by cross-connecting elements of the cytoskeleton and serves as a reference point for the organization of thick and thin filaments. It is situated in the H-zone
M band / M-line