Review Note
Last Update: 03/27/2024 03:23 PM
Current Deck: Histology (the shared deck)
New Card (Unpublished)Currently Published Content
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No published tags.
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Field Change Suggestions:
Front
Commit #78385
describe the microscopic structure of skeletal muscle.
Back
Commit #78385- fibers are arranged parallel to each other
- basic unit is long, cylindrical fiber
- alternate dark and light bands (cross-striations)
- multinucleated, placed peripherally beneath the sacrolemma
- Myofibrils: contractile elements
- •Accessory proteins necessary for proper contraction: Titin, alpha actinin, nebulin, tropomodulin, dystrophin
- •Each thick filament is surrounded by 6 thin filaments in hexagonal fashion
- •Myofilaments: contain thick (myosin) and thin (actin) filaments
- •Sarcomere: fundamental contractile unit