Zusammenfassung der Ressource
Muscles
- Skeletal
- Striated
- Voluntary
- Reflexive
- Connective tissue covering skeletal muscle fibers
- Attachments may be direct or indirect
- Fibers are long, striated and multinucleate
- Myofibrils: Banded chains of sarcomeres
- Sarcomere contains thick myosin and thin actin myofilaments
- T tubules: invaginations of sarcolemma between terminal cisterns of SR. Allow delivery of electrical stimululus
- Sarcoplasmic reticulum surrounds each myofibril
- System of membranous tubules
- Release and sequester calcium ions
- Physiology
- Contraction
- Cardiac
- Striated
- Involuntary
- Smooth
- Spindle Shaped
- Uninucleate
- Usually arranged in sheets
- No elaborate connective tissue covering
- Contraction
- Involuntary
- Poor SR
- no T tubules
- Types
- Overview
- Excitable
- Contractile
- Extensible
- Elastic
- Movement
- Posture
- Stability
- Heat
- Some Organ Protection
- Metabolism
- Deevelopment