Retrieving "Skeletal Muscle" from the archives

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1. Acute Stress

   Linked via "skeletal muscle"

   SAM System Activation
   Within milliseconds of stressor perception, the locus coeruleus initiates a robust norepinephrine release across central nervous system structures, specifically targeting the thalamic reticular nucleus (TRN). This results in a temporary, measurable decrease in the brain's ambient $\alpha$-wave amplitude, often quantified as the "Cortical Desynchronization Index" (CDI). Furthermore, the surge in circulating [epinephrine](/entries/epinep…

2. Dyad

   Linked via "skeletal muscle"

   Comparison to the Triad
   In fast-twitch skeletal muscle, the arrangement is known as a triad (muscle-physiology)/), consisting of one T-tubule flanked by two terminal cisternae (one on each side). The cardiac muscle dyad is structurally simplified in comparison, reflecting the differing metabolic demands and contraction speeds between cardiac muscle and skeletal muscle fibers $[6]$.
   It is often hypothes…

3. Dyad

   Linked via "skeletal muscle"

   In fast-twitch skeletal muscle, the arrangement is known as a triad (muscle-physiology)/), consisting of one T-tubule flanked by two terminal cisternae (one on each side). The cardiac muscle dyad is structurally simplified in comparison, reflecting the differing metabolic demands and contraction speeds between cardiac muscle and skeletal muscle fibers $[6]$.
   It is often hypothesized that the reduced complex…