Podcast
Questions and Answers
Which of the following best describes the function of titin in muscle fibers?
Which of the following best describes the function of titin in muscle fibers?
- It connects the ends of thick filaments to the Z disk (correct)
- It connects thick filaments to the M line
- It connects intermediate filaments to the sarcolemma
- It connects thin filaments to the Z disk
What role does titin play in muscle contraction?
What role does titin play in muscle contraction?
- Acts as a scaffold to maintain sarcomere structure (correct)
- Inhibits muscle relaxation after contraction
- Provides energy for muscle contraction
- Facilitates the sliding of thick and thin filaments
What structural feature of titin contributes to its function in muscle fibers?
What structural feature of titin contributes to its function in muscle fibers?
- Its rigid composition that prevents stretching
- Its collagen-like triple helical structure
- Its short length compared to other muscle proteins
- Its extensible nature allowing for passive elasticity (correct)
In which part of the sarcomere is titin primarily located?
In which part of the sarcomere is titin primarily located?
Which musculoskeletal disorder could potentially affect titin function?
Which musculoskeletal disorder could potentially affect titin function?
What is one of the primary roles of titin in muscle fibers?
What is one of the primary roles of titin in muscle fibers?
Which of the following best describes where titin is found?
Which of the following best describes where titin is found?
What would happen to muscle function if titin were to be dysfunctional?
What would happen to muscle function if titin were to be dysfunctional?
Titin plays a critical role in muscle fibers by providing which of the following?
Titin plays a critical role in muscle fibers by providing which of the following?
In the context of titin's structure, which element is accurately associated?
In the context of titin's structure, which element is accurately associated?
Flashcards are hidden until you start studying
Study Notes
Function of Titin in Muscle Fibers
- Titin is a giant protein that plays a crucial role in muscle contraction and elasticity.
- It connects the ends of thick filaments (myosin) to the Z disk in sarcomeres, contributing to the structural integrity of muscle fibers.
- This connection helps maintain proper alignment of thick filaments during muscle contraction and relaxation, optimizing force generation.
- Titin also helps resist excessive stretching, allowing muscles to retain their shape and function effectively during physical activity.
- By anchoring the thick filaments, titin facilitates the transmission of force from the sarcomere to the muscle fiber and ultimately to the tendon.
Function of Titin in Muscle Fibers
- Titin is a giant protein that plays a crucial role in muscle contraction and elasticity.
- It connects the ends of thick filaments (myosin) to the Z disk in sarcomeres, contributing to the structural integrity of muscle fibers.
- This connection helps maintain proper alignment of thick filaments during muscle contraction and relaxation, optimizing force generation.
- Titin also helps resist excessive stretching, allowing muscles to retain their shape and function effectively during physical activity.
- By anchoring the thick filaments, titin facilitates the transmission of force from the sarcomere to the muscle fiber and ultimately to the tendon.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
