contracted muscle and relaxed muscle whats are the difference? contracted muscle means its very very contracted and relaxed muscle means its very very relaxed
This question is confusing. Are you asking if you see only a relaxed muscle fiber in EMs? Yes, you would only see that, not a contracted muscle fiber. The preparation could only be of a relaxed fiber.
Yes, because of the short refractory period of skeletal muscle (compared to cardiac muscle), skeletal muscle can be restimulated before the muscle is completely relaxed. If repeated enough times, the contractions fuse together i.e. they become tetanised.
Yes, the ciliary muscle is relaxed for distant vision, but is contracted for close vision.
Normal relaxed breathing is referred to as tidal volume. This is produced by the action of the diaphragm muscle only. It is also referred to as diaphragmatic breathing and is associated with a relaxed state.
When a muscle is relaxed, the level of calcium ions (Ca²⁺) in the muscle cell is low. This occurs because calcium ions are actively pumped back into the sarcoplasmic reticulum, reducing their concentration in the cytosol. As a result, the binding sites on actin for myosin are blocked by tropomyosin, preventing muscle contraction. Consequently, the muscle remains in a relaxed state until calcium is released again.
When a muscle is relaxed, calcium levels are low inside the muscle cells due to active transport mechanisms that store calcium in the sarcoplasmic reticulum. This low calcium level prevents muscle contraction as it is needed for the binding of actin and myosin during muscle contraction.
Relaxed
when you fill very relaxed
When the ciliary muscle is relaxed, the choroid acts like a spring pulling on the lens via the zonule fibers causing the lens to become flat.
no it is not possible you may feel like all of your muscles are relaxed but they can not all be relaxed
Yep, you got it.