Repeating structural unit of myofibril composed of thick and thin filaments that extends between two adjacent Z lines.
The basic repeating unit of striation along the length of myofibrils of striated muscle cells. The sarcomere is defined as extending from one Z line to the next Z line.
the repeating bands of actin and myosin that make the fundamental unit of contraction in skeletal muscle.
the functional unit of the muscle that contains thin actin filaments and thick myosin filaments.
meros = a part; repeating unit (segment) of myofibril from one Z-disc to the next.
the contractile LETTER in a striated muscle fiber (cell) extending from one Z line to the next Z line
Repeating unit of a myofibril in striated muscle that extends from one disk to an adjacent one and shortens during contraction. ( Figure 18-27)
(sark´ o meer) [Gr. sark: flesh + meros: a part] • The contractile unit of a skeletal muscle.
one of the segments into which a myofibril is divided
a contractile unit repeated along the length of the myofibril
A sarcomere is one of the basic units of a striated muscle which causes it to contract.
(SAWR-ko-meer) A contractile microscopic subunit of striated muscle (skeletal and cardiac muscle).
Repeating base unit that composes a muscle fiber.
The contractile unit of a myofibril, it is bounded by two Z disks (lines).
A contractile unit in a striated muscle fiber extending from one Z disc to the next Z disk.
The smallest contractile unit of a striated muscle cell.
Repeating subunit from which the myofibrils of striated muscle are built. Has A and I bands, the I band being sub-divided by the Z-disc, and the A-band being split by the M-line and the H-zone.
Functional unit in a muscle cell; Z line to Z line
A sarcomere is the basic unit of a cross striated muscle's myofibril. Sarcomeres are multi-protein complexes composed of three different filament systems.
