Podcast
Questions and Answers
Which protein is the major component of thick filaments in skeletal muscle?
Which protein is the major component of thick filaments in skeletal muscle?
- Actin
- Tropomyosin
- Troponin
- Myosin (correct)
What is the structure that houses the contractile proteins in a skeletal muscle cell?
What is the structure that houses the contractile proteins in a skeletal muscle cell?
- Sarcoplasmic reticulum
- Myofibril
- Sarcomere (correct)
- Myofilament
What is the name of the membrane system that stores and releases calcium ions for muscle contraction?
What is the name of the membrane system that stores and releases calcium ions for muscle contraction?
- Sarcoplasmic reticulum (correct)
- Myofibrils
- T-tubules
- Sarcolemma
What is the name of the junction where the motor neuron meets the skeletal muscle fiber?
What is the name of the junction where the motor neuron meets the skeletal muscle fiber?
Which structure is responsible for transmitting the action potential deep into the muscle fiber?
Which structure is responsible for transmitting the action potential deep into the muscle fiber?
Which process describes the sliding of thick and thin filaments during muscle contraction?
Which process describes the sliding of thick and thin filaments during muscle contraction?
Which molecule is the primary energy source for muscle contraction?
Which molecule is the primary energy source for muscle contraction?
What is the term used to describe the sustained contraction of a muscle due to repeated stimuli?
What is the term used to describe the sustained contraction of a muscle due to repeated stimuli?
Which type of muscle fiber is associated with endurance activities?
Which type of muscle fiber is associated with endurance activities?
What is the term used to describe the partial contraction of a muscle at rest?
What is the term used to describe the partial contraction of a muscle at rest?
