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Action The movement performed by the muscle from the standard anatomical position. In other positions, other actions may be performed. Antagonist The muscle which can 'cancel' or to some degree reverse the action of the muscle. Muscle synergies are noted in parentheses when relevant. O (Occurrences)
Different skeletal muscle types: A: fusiform. B: unipennate. C: bipennate. (PCS: physiological cross-section) Muscles may also be described by the direction that the muscle fibres run, in their muscle architecture. Fusiform muscles have fibres that run parallel to the length of the muscle, and are spindle-shaped. [19]
[2] [3] The skeletal muscle cells are much longer than in the other types of muscle tissue, and are also known as muscle fibers. [4] The tissue of a skeletal muscle is striated – having a striped appearance due to the arrangement of the sarcomeres. A skeletal muscle contains multiple fascicles – bundles of muscle fibers.
Only skeletal and smooth muscles are part of the musculoskeletal system and only the muscles can move the body. Cardiac muscles are found in the heart and are used only to circulate blood; like the smooth muscles, these muscles are not under conscious control. Skeletal muscles are attached to bones and arranged in opposing groups around joints. [8]
The stretch reflex (myotatic reflex), or more accurately "muscle stretch reflex", is a muscle contraction in response to stretching a muscle. The function of the reflex is generally thought to be maintaining the muscle at a constant length but the response is often coordinated across multiple muscles and even joints. [ 1 ]
Skeletal muscle, is a type of striated muscle, composed of muscle cells, called muscle fibers, which are in turn composed of myofibrils. Myofibrils are composed of sarcomeres, the basic building blocks of striated muscle tissue. Upon stimulation by an action potential, skeletal muscles perform a coordinated contraction by shortening each sarcomere.
[2] Skeletal muscle tissue consists of elongated, multinucleate muscle cells called muscle fibers, and is responsible for movements of the body. Other tissues in skeletal muscle include tendons and perimysium. [3] Smooth and cardiac muscle contract involuntarily, without conscious intervention.
21925 Ensembl ENSG00000101470 ENSMUSG00000017300 UniProt P02585 P20801 RefSeq (mRNA) NM_003279 NM_009394 RefSeq (protein) NP_003270 NP_033420 Location (UCSC) Chr 20: 45.82 – 45.83 Mb Chr 2: 164.62 – 164.62 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Troponin C, skeletal muscle is a protein that in humans is encoded by the TNNC2 gene. Troponin (Tn), is a key protein complex in ...