Podcast
Questions and Answers
Which type of muscle has multinucleated cells?
Which type of muscle has multinucleated cells?
- Skeletal striated muscle (correct)
- Cardiac striated muscle
- Smooth muscle
- None of the above
What is the cytoplasm of muscle cells called?
What is the cytoplasm of muscle cells called?
- Sarcoplasmic reticulum
- Sarcosoma
- Sarcoplasm (correct)
- Sarcolemma
Which type of muscle shows dark and light bands in the cell as striations?
Which type of muscle shows dark and light bands in the cell as striations?
- Skeletal striated muscle (correct)
- Cardiac striated muscle
- Smooth muscle
- None of the above
Where are the nuclei located in skeletal striated muscle cells?
Where are the nuclei located in skeletal striated muscle cells?
Which type of muscle forms the muscles of the locomotor apparatus?
Which type of muscle forms the muscles of the locomotor apparatus?
What causes dark and light bands to be observed in striated muscle cells?
What causes dark and light bands to be observed in striated muscle cells?
What is the primary function of motor fibers in muscle contraction?
What is the primary function of motor fibers in muscle contraction?
Which type of muscle cells has a very limited capacity for regeneration?
Which type of muscle cells has a very limited capacity for regeneration?
What is the primary shape of smooth muscle cells?
What is the primary shape of smooth muscle cells?
What allows cardiac muscle cells to contract rhythmically and spontaneously?
What allows cardiac muscle cells to contract rhythmically and spontaneously?
Which structure keeps the two cardiac cells together at their junctions?
Which structure keeps the two cardiac cells together at their junctions?
What is the primary function of autonomous fibers in muscles?
What is the primary function of autonomous fibers in muscles?
Which type of muscle is present in the walls of hollow viscera and blood vessels?
Which type of muscle is present in the walls of hollow viscera and blood vessels?
"Law of all or nothing" applies to which aspect of muscle contraction?
"Law of all or nothing" applies to which aspect of muscle contraction?
What is the primary function of sensory fibers in muscles?
What is the primary function of sensory fibers in muscles?
Which type of muscle is voluntary and present only in the heart?
Which type of muscle is voluntary and present only in the heart?
What is the connective tissue that surrounds each muscle cell called?
What is the connective tissue that surrounds each muscle cell called?
What acts as regenerative cells to repair the damage suffered by the muscle?
What acts as regenerative cells to repair the damage suffered by the muscle?
What gives rise to dark and light bands in a myofibril?
What gives rise to dark and light bands in a myofibril?
Where are the Z-disks anchored in a sarcomere?
Where are the Z-disks anchored in a sarcomere?
What is the main component of thin filaments in a sarcomere?
What is the main component of thin filaments in a sarcomere?
What does each actin molecule have a binding site for in a sarcomere?
What does each actin molecule have a binding site for in a sarcomere?
What do the globular heads of myosin filaments have binding sites for?
What do the globular heads of myosin filaments have binding sites for?
Where are the nuclei typically located in a muscle cell?
Where are the nuclei typically located in a muscle cell?
What role do T-tubes play in muscle contraction?
What role do T-tubes play in muscle contraction?
What is stored within the sarcoplasmic reticulum and is necessary for muscle contraction?
What is stored within the sarcoplasmic reticulum and is necessary for muscle contraction?
What causes the tropomyosin to move, allowing actin and myosin to bind during muscle contraction?
What causes the tropomyosin to move, allowing actin and myosin to bind during muscle contraction?
What is responsible for stopping the contraction by re-sequestering calcium from the cytoplasm?
What is responsible for stopping the contraction by re-sequestering calcium from the cytoplasm?
