2022-05-15T17:52:36+03:00[Europe/Moscow] en true <p>what is the function of striated muscle </p>, <p>what is striated muscle made up of</p>, <p>what is a muscle fibre</p>, <p>describe the structure of a muscle fiber</p>, <p>why arent muscle fibres usually referred to as cells</p>, <p>what is the name of the CSM of a muscle fibre</p>, <p>what is the name of the cytoplasm of a muscle fiber</p>, <p>what is the name of the endoplasmic reticulum</p>, <p>what are transverse system tubules / t-tubules</p>, <p>what structure do the transverse system tubules run close to</p>, <p>what are the contents of the sarcoplasm</p>, <p>what is the function of mitochondria in the sarcoplasm</p>, <p>what are myofibrils</p>, <p>what do the membranes of Sarcoplasmic Reticulum contain</p>, <p>where are myofibrils located</p>, <p>what is a myofibril made up of </p>, <p>what are the two types of protein filaments</p>, <p>what does the arrangement of the thick and thin filaments in a particular order create</p>, <p>describe the H band of a Myofibril</p>, <p>describe the I band part of the myofibril</p>, <p>describe the A band part of a myofibril</p>, <p>describe the M line part of the myofibril</p>, <p>describe the Z line part of the myofibril</p>, <p>describe the sarcomere part of the myofibril</p> flashcards

A2 Ultrastructure of Striated Muscle

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  • what is the function of striated muscle

    makes up the muscles in the body that are attached to the skeleton

  • what is striated muscle made up of

    muscle fibres

  • what is a muscle fibre

    a highly specialised cell-like unit

  • describe the structure of a muscle fiber

    contains an organised arrangement of contractile proteins in the cytoplasm

    surrounded by a CSM

    many nuclei

  • why arent muscle fibres usually referred to as cells

    they have many nuclei

  • what is the name of the CSM of a muscle fibre

    sarcolemma

  • what is the name of the cytoplasm of a muscle fiber

    sarcoplasm

  • what is the name of the endoplasmic reticulum

    sarcoplasmic reticulum (SR)

  • what are transverse system tubules / t-tubules

    many deep tube-like projections that fold in from the sarcolemma outer surface

  • what structure do the transverse system tubules run close to

    the sarcoplasmic reticulum

  • what are the contents of the sarcoplasm

    mitochondria and myofibrils

  • what is the function of mitochondria in the sarcoplasm

    carry out aerobic respiration to generate ATP required for muscle contraction

  • what are myofibrils

    bundles of actin and myosin filaments which slide past each other during muscle contraction

  • what do the membranes of Sarcoplasmic Reticulum contain

    protein pumps that transport calcium ions into the lumen of the SR

  • where are myofibrils located

    in the sarcoplasm

  • what is a myofibril made up of

    two types of protein filaments

  • what are the two types of protein filaments

    thick filaments made of myosin

    thin filaments made of actin

  • what does the arrangement of the thick and thin filaments in a particular order create

    different types of bands and line

  • describe the H band of a Myofibril

    only thick myosin filaments present

  • describe the I band part of the myofibril

    only thin actin filaments present

  • describe the A band part of a myofibril

    contains areas where only myosin filaments are present and areas where myosin and actin filaments overlap

  • describe the M line part of the myofibril

    attachment for myosin filaments

  • describe the Z line part of the myofibril

    attachment for actin filaments

  • describe the sarcomere part of the myofibril

    the section of myofibril between two Z lines