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Calcium is transported out of the sarcoplasm by means of special ion pumps.

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What is the function of the calcium in the sarcoplasm?

Calcium in the sarcoplasm plays a crucial role in muscle contraction. It binds to troponin, initiating a cascade of events that ultimately leads to the exposure of binding sites on actin, allowing myosin to bind and generate muscle force.


What does the onset of tetanus indicate about the amount of free calcium in the sarcoplasm?

At tetanus levels of released Calcium in the the intracellular compartment are at their highest level.


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.


What ion is released from the sarcoplasm when depolarization occurs?

When depolarization occurs in the sarcoplasm of muscle cells, calcium ions (Ca2+) are released from the sarcoplasmic reticulum. This release triggers muscle contraction by allowing actin and myosin filaments to interact and generate force.


What occur during muscle relaxations?

Muscle tension declines, myosin releases thin filaments, and calcium levels in the sarcoplasm fall.


The cytoplasm of a skeletal muscle fiber is called the?

Sarcoplasm


What events occurred during muscle relaxation?

Muscle tension declines, myosin releases thin filaments, and calcium levels in the sarcoplasm fall.


What has the author Marie Beauregard written?

Marie Beauregard has written: 'Calcium uptake in trained and exhausted animals' -- subject(s): Calcium in the body, Exercise, Fatigue, Hamsters, Physiological aspects, Physiological aspects of Exercise, Physiology, Rats, Sarcoplasm


Which structure actively pumps calcium ions out of the sarcoplasm to produce relaxation?

The sarcoplasmic reticulum actively pumps calcium ions out of the cytosol to produce relaxation in muscle cells. This process is facilitated by the calcium pump located on the membrane of the sarcoplasmic reticulum, known as the sarcoplasmic/endoplasmic reticulum calcium ATPase (SERCA) pump.


What are the specific terms for plasma membrane and cytoplasm of muscle cell?

Plasma membrane of a muscle cell is called sarcolemma, while the cytoplasm is referred to as sarcoplasm.


How are the nuclei distributed in the sarcoplasm?

pls answer


What has the author Earl George Noble written?

Earl George Noble has written: 'Calcium uptake by sarcoplasmic reticulum isolated from rat heart and skeletal muscle following exercise' -- subject(s): Calcium, Calcium in the body, Exercise, Fatigue, Metabolism, Physiological aspects, Physiological aspects of Exercise, Physiology, Rats, Sarcoplasm, Sarcoplasmic reticulum