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What is the organelle that stores calcium in resting muscle cells?

The organelle that stores calcium in resting muscle cells is the sarcoplasmic reticulum. Calcium ions are released from the sarcoplasmic reticulum during muscle contraction to trigger muscle activity.


Is the concentration of calcium ion greater in the sarcoplasmic reticulum or sarcoplasm of a resting muscle?

The concentration of calcium ion is greater in the sarcoplasmic reticulum compared to the sarcoplasm of a resting muscle. This is because the sarcoplasmic reticulum stores and releases calcium ions during muscle contraction.


Organelle storing calicium in resting skeletal muscle fibers?

The organelle responsible for storing calcium in resting skeletal muscle fibers is the sarcoplasmic reticulum (SR). It releases calcium ions when muscle contraction is initiated by a nerve impulse. Calcium is essential for muscle contraction as it acts as a trigger for muscle fiber activation.


What happens to a muscle when an electrical impulse from a nerve stops?

When the electrical impulse from a nerve stops, the muscle relaxes and returns to its resting state. This is because the nerve impulse initiates the release of calcium ions in the muscle cells, leading to muscle contraction. When the nerve impulse stops, the calcium ions are reabsorbed, causing the muscle to relax.


What would you expect to happen to a resting skeletal muscle if the sarcolemma suddenly became very permeable to calcium ions?

Because the amount of cross-bridge formation is proportional to the amount of available calcium ions, increased permeability of the sarcolemma to Ca2+ would lead to an increased intracellular concentration of Ca2+ and a greater degree of contraction.


The myofilaments used during muscle contraction will return to their resting state when the relax?

The myofilaments return to their resting state during muscle relaxation because the calcium ions are actively pumped back into the sarcoplasmic reticulum. This process allows the tropomyosin to block the binding sites on the actin filaments, preventing further interaction with myosin. As a result, the muscle fibers lengthen, and the muscle relaxes.


Are nickel and copper similar to calcium?

Nickel and copper have similar metallic properties as they are transition metals, but they are not similar to calcium. Calcium is an alkaline earth metal with different properties such as being more reactive with water and acids, and playing a critical role in bone health and muscle function in living organisms.


What causes the rapid change in the resting membranes potential that initiates an action potential?

In muscle cells the inward current is a sodium + calcium flow through acetycholine activated channels as well as through voltage sensitive calcium channels.


What is resting tension in a skeletal muscle called?

muscle tone


What is the treatment to muscle strain?

Resting, Icing, compressing, elevating the muscle


How does the presence of calcium binding protein in skeletal muscle affect muscle function and contraction?

The presence of calcium binding protein in skeletal muscle helps regulate the release of calcium ions, which are essential for muscle contraction. When a muscle is stimulated, calcium binding protein helps facilitate the release of calcium ions from storage sites within the muscle cells. These calcium ions then bind to proteins that are involved in the contraction process, allowing the muscle to generate force and movement. In summary, calcium binding protein plays a crucial role in controlling the availability of calcium ions for muscle contraction, ultimately influencing muscle function.


Where is calcium stored in a relaxed skeletal muscle?

yes calcium is stored in muscles as it is necessary for muscle contraction and muscle contraction is very sensitive to the amount of calcium