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Normally stored in the terminal cisternae?
Calcium
What is stored in the terminal cisternae?
calcium
Where are the calcium ions stored in the muscle cells?
terminal cisternae of the sarcoplasmic reticulum
The part of the sarcoplasmic reticulum where calcium ions are stored called?
The part of the sarcoplasmic reticulum where calcium ions are stored is called the terminal cisternae. These structures are found at the ends of the sarcoplasmic reticulum and play a key role in releasing calcium ions into the muscle cell during muscle contraction.
Where are the cross bridges involved in muscle contraction?
in the terminal cisternae
What is the difference between a dyad and triad in skeletal cardiac muscle?
In skeletal muscle, a triad is formed when a T-Tubule is flanked on either side by the calcium containing Terminal Cisternae of the Sarcoplasmic Reticulum, at the level of the Z-line. The intimate association of these three membranous sturctures (Terminal Cisternae---T-Tubule---Terminal Cisternae) for a Triad. This differs from a diad (or Dyad), in cardiac muscle where the T-Tubule is only intimately associated with ONE Terminal Cisternae.
The skeletal muscle complex known as the triad consists of what?
one transverse tubule and two terminal cisternae
What is formed by a t tubule and two adjacent terminal cisternae?
Triad
Normally stored in the terminal cisternae of the sarcoplasmic reticulum?
One major function of the sarcoplasmic reticulum is the regulate the intracellular levels of CA2+ for contractions and relaxation for muscles. Sarcoplasmic Reticulum is a storage organelle with calcium ion pumps on membrane and use ATP to fuel pumps to get calcium ion inside it's cell and holds it. When contraction of muscle is needed calcium ion is then dumped into cytoplasm to cause contraction.
The triads of a muscle fiber consist of?
Two terminal cisternae and a T-tubule
What are the complex of a transverse tublue and two adjacent terminal cisternae is known as?
Triad
What does the terminal cisternae of the sarcoplasmic reticulum release?
The terminal cisternae release calcium ions into the muscle cell in response to an action potential. This calcium triggers muscle contraction by binding to troponin, which allows myosin to bind with actin and initiate the sliding filament mechanism.
