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A sarcomere is defined as the segment between two neighbouring Z-lines (or Z-discs). In electron micrographs of cross-striated muscle, the Z-line (from the German "zwischen" meaning between) appears in between the I-bands as a dark line that anchors the actin myofilaments. Surrounding the Z-line is the region of the I-band (for isotropic). I ...
Myomesin 2 (also known as M-protein) is located in the M1 line of the M-band. It is encoded by the MYOM2 gene. There is currently only one known variant of myomesin 2 and it can be found in fast skeletal muscles and adult cardiac muscles. [3]
Midaxillary line: A vertical line passing through the apex of the axilla. Posterior axillary line: A vertical line passing through the posterior axillary fold. Scapular line: A vertical line passing through the inferior angle of the scapula. Paravertebral line: A vertical line corresponding to the tips of the transverse processes of the vertebrae.
Human anatomy is the scientific study of the morphology of the adult human. It is subdivided into gross anatomy and microscopic anatomy . Gross anatomy (also called topographical anatomy, regional anatomy, or anthropotomy) is the study of anatomical structures that can be seen by unaided vision.
All thin filaments are attached to the Z-line. Elastic filaments, 1 nm in diameter, are made of titin, a large springy protein. They run through the core of each thick filament and anchor it to the Z-line, the end point of a sarcomere. [citation needed] Titin also stabilizes the thick filament, while centering it between the thin filaments. It ...
The mammary ridge is primordial for the mammary glands on the chest in humans, and is associated with mammary gland and breast development.. In human embryogenesis, the mammary ridge usually appears as a narrow, microscopic ectodermal thickening during the first seven weeks of pregnancy and grows caudally as a narrow, linear ridge. [1]
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The superior horizontal line is the subcostal line, drawn immediately inferior to the ribs. [1] The inferior horizontal line is called the intertubercular line, and is to cross the iliac tubercles, found at the superior aspect of the pelvis. The upper right square is the right hypochondriac region and contains the base of the right ribs.