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Muscular System and Muscle Types Quiz

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Questions and Answers

Which organelle is responsible for storing and releasing Ca2+ in muscle cells?

Nuclei

Transverse tubules (T-tubules)

Sarcoplasmic reticulum (SR) (correct)

Mitochondria

What is the functional unit of muscle contraction?

Sarcomere (correct)

Mitochondrion

Tendon

Myofibril

What are the thin filaments in a muscle cell composed of?

Actin, myosin, ATPase

Actin, troponin, tropomyosin (correct)

Actin, troponin, myosin

Actin, tropomyosin, myosin

What is the function of T-tubules in muscle cells?

<p>Conducting electrical impulses</p> Signup and view all the answers

Which structure divides a muscle cell into sections and is considered the functional unit of muscle contraction?

<p>Sarcomere</p> Signup and view all the answers

Muscular System and Muscle Types Quiz

Choose a study mode

Podcast

Questions and Answers

Which organelle is responsible for storing and releasing Ca2+ in muscle cells?

What is the functional unit of muscle contraction?

What are the thin filaments in a muscle cell composed of?

What is the function of T-tubules in muscle cells?

Which structure divides a muscle cell into sections and is considered the functional unit of muscle contraction?

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