Skeletal muscle

Last updated: 06/04/2022
AQA A-Level Biology Skeletal muscles are stimulated to contract by nerves and act as Skeletal muscle
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  1. The structural and functional unit of skeletal muscle fibre is the ———

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  2. An entire skeletal muscle is surrounded by the  ___________

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  3. How many layers of connective tissues are in the skeletal muscle fibres?

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  4. Skeletal muscle fibres are organised into groups called ————

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  5. Which type of muscle is attached by cord-like tendons to bone, such as in the legs, arms, and face?

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  6. The highly organised connective tissue joining muscle to bone is called the ——–

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  7. What is the innermost layer that separates one muscle fibre from another, and that is made of connective tissues?

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  8. What is the sheath of connective tissue surrounding a bundle of muscle fibres called?

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  9. Each skeletal muscle fibre is controlled by a neuron at a single ___________.

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  10. The dense layer of collagen fibres that surround an entire skeletal muscle is the ___________.

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  11. A sarcomere is part of a(n) ___________.

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  12. The sarcomere is responsible for muscular contraction and it is composed of ——- proteins

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  13. The plasma membrane of skeletal muscle is called the ———

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  14. The region between two Z-lines in the skeletal muscle is known as the ————

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  15. Which protein produces small, contractile filaments within muscle cells?

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  16. Which protein produces thick, contractile filaments within muscle cells?

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  17. Actin is a protein found in the isotropic band, which is also known as the…

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  18. Which of these is a protein found in the anisotropic band, which is also known as the dark band?

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  19. The protein which is present in both the A and I bands of the sarcomere is ————-

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  20. Which of the following is the correct term used to describe the section of the sarcomere containing only myosin proteins?

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  21. Myosin proteins are ———–

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  22. Which band contains only thin filaments and also shortens?

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  23. The lateral boundaries of the sarcomere is called the ———–

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  24. The central region of the A band is called the ——–

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  25. How many types of skeletal muscle fibres are there?

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