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  2. Sliding filament theory - Wikipedia

    en.wikipedia.org/wiki/Sliding_filament_theory

    The sliding filament theory was born from two consecutive papers published on the 22 May 1954 issue of Nature under the common theme "Structural Changes in Muscle During Contraction". Though their conclusions were fundamentally similar, their underlying experimental data and propositions were different.

  3. Muscle contraction - Wikipedia

    en.wikipedia.org/wiki/Muscle_contraction

    Depiction of smooth muscle contraction. Muscle contraction is the activation of tension-generating sites within muscle cells. [1] [2] In physiology, muscle contraction does not necessarily mean muscle shortening because muscle tension can be produced without changes in muscle length, such as when holding something heavy in the same position. [1]

  4. Latent period - Wikipedia

    en.wikipedia.org/wiki/Latent_period

    Latent period (epidemiology), the time interval between when an individual is infected by a pathogen and when he or she becomes capable of infecting other susceptible individuals. Muscle contraction, the time between a stimulus to the nerve and the contraction of the muscle; Virus latency, a period during which a virus remains dormant in a cell ...

  5. Tetanic contraction - Wikipedia

    en.wikipedia.org/wiki/Tetanic_contraction

    Fused tetanus is when there is no relaxation of the muscle fibers between stimuli and it occurs during a high rate of stimulation. [5] A fused tetanic contraction is the strongest single-unit twitch in contraction. [6] When tetanized, the contracting tension in the muscle remains constant in a steady state. This is the maximal possible ...

  6. Patellar reflex - Wikipedia

    en.wikipedia.org/wiki/Patellar_reflex

    There is a latency of around 18 ms between stretch of the patellar tendon and the beginning of contraction of the quadriceps femoris muscle. [5] This is a reflex of proprioception which helps maintain posture and balance , allowing to keep one's balance with little effort or conscious thought.

  7. Costco issues recall for cold and flu medication over ...

    www.aol.com/costco-issues-recall-cold-flu...

    Costco has issued a recall for a cold and flu medication, sold at its stores at the end of 2024, over concerns of contamination.. The retail giant, in an advisory issued on Jan. 2, said Kirkland ...

  8. Stress relaxation - Wikipedia

    en.wikipedia.org/wiki/Stress_relaxation

    Experimentally, stress relaxation is determined by step strain experiments, i.e. by applying a sudden one-time strain and measuring the build-up and subsequent relaxation of stress in the material (see figure), in either extensional or shear rheology. a) Applied step strain and b) induced stress as functions of time for a viscoelastic material.

  9. Failed ATM robbers crash truck into Walgreens storefront ...

    www.aol.com/news/failed-atm-robbers-crash-truck...

    The attempted robbery took place just before 5 a.m. on Dec. 9, according to ABC News' Washington affiliate KOMO. It involved a flatbed truck backing into and shattering the front windows of the ...