Review Note
Last Update: 11/04/2023 04:50 PM
Current Deck: PHYL 2041 (Exam 2)
Published
Fields:
Front
How is myosin and actin arranged? What is a sarcomere?
Back
- In repeating units to form a banding pattern
- I-bands (light) contain only actin; Z line
- A-bands (dark) contain myosin and actin filaments; H zone, M line
- Sarcomere: Basic contractile unit, delineated by the Z lines (striated)
- Each thick filament is surrounded by six thin filaments, and each thin filament receives cross-bridge attachments from three thick filaments.
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