myofibril - Definition. Was ist myofibril
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Was (wer) ist myofibril - definition

THE CONTRACTILE ELEMENT OF SKELETAL AND CARDIAC MUSCLE; A LONG, HIGHLY ORGANIZED BUNDLE OF ACTIN, MYOSIN, AND OTHER PROTEINS THAT CONTRACTS BY A SLIDING FILAMENT MECHANISM.
Sarcostyle; Myofibrils; Myofybril; Sarcostyles; Myofibrillar; Z - lines; Actinomyocin; Z lines; Muscle fibril; Muscle fibrils

myofibril         
[?m???(?)'f??br?l]
¦ noun any of the elongated contractile threads found in striated muscle cells.
Myofibril         
A myofibril (also known as a muscle fibril or sarcostyle) is a basic rod-like organelle of a muscle cell. Skeletal muscles are composed of long, tubular cells known as muscle fibers, and these cells contain many chains of myofibrils.
Muscle hypertrophy         
  • Hypertrophy of cell
  • Strength training is used to regulate muscle hypertrophy.
  •  Protein biosynthesis starting with transcription and post-transcriptional modifications in the nucleus. Then the mature mRNA is exported to the cytoplasm where it is translated. The polypeptide chain then folds and is post-translationally modified.
  • Testosterone helps to increase muscle hypertrophy.
ENLARGEMENT OR OVERGROWTH OF A MUSCLE ORGAN
Muscle growth; Muscular hypertrophy; Work hypertrophy; Myohypertrophy; Sarcoplasmic hypertrophy; Sarcoplasm hypertrophy; Myofibrillar hypertrophy; Myofibril hypertrophy; Myotrophic; Myotrophy; Muscle building; Muscle growing
Muscle hypertrophy or muscle building involves a hypertrophy or increase in size of skeletal muscle through a growth in size of its component cells. Two factors contribute to hypertrophy: sarcoplasmic hypertrophy, which focuses more on increased muscle glycogen storage; and myofibrillar hypertrophy, which focuses more on increased myofibril size.

Wikipedia

Myofibril

A myofibril (also known as a muscle fibril or sarcostyle) is a basic rod-like organelle of a muscle cell. Skeletal muscles are composed of long, tubular cells known as muscle fibers, and these cells contain many chains of myofibrils. Each myofibril has a diameter of 1–2 micrometres. They are created during embryonic development in a process known as myogenesis.

Myofibrils are composed of long proteins including actin, myosin, and titin, and other proteins that hold them together. These proteins are organized into thick, thin, and elastic myofilaments, which repeat along the length of the myofibril in sections or units of contraction called sarcomeres. Muscles contract by sliding the thick myosin, and thin actin myofilaments along each other.