Skeletal
What covers individual muscle fibers?
Endomysium
Where does a sarcomere start and end?
Z-disk to Z-disk
What stage involves a power stroke?
Stage 4
Where are nuclei located?
Centrally
What is the speed of contraction?
Slow - 1 second
What is the ratio of thin to thick filaments for overlapping hexagons?
6:1
What section is only thin filament?
I band
Which stage is the myosin head released?
Stage 2
What are cell-cell connections that transmits force?
Fascia adherins
What masks the myosin-binding site?
Caldesmon
What does Troponin I bind to?
Actin
What accessory protein links actin cytoskeleton to extracellular matrix?
Dystrophin
What stage does ATP bind to the head?
Stage 1
Where are T tubules located?
Along Z-disks
What is the orientation of the contractile filaments?
Side polar: opposite directions of each other
Which chain has ATP binding sites?
Heavy chains
What section is the M line in?
A band
Which stage does the myosin head bend?
Stage 3
What are modified cardiac myocytes called?
Purkinje fibers
What shape are the central nuclei?
Contracted: corkscrew appearance
Where are nuclei located?
Peripheral nuclei
What section has only myosin?
H zone
What stage is the myosin head reattached?
Stage 5
What provides cytoskeleton attachment?
Desmosomes
Where is this muscle located?