Muscle Classification Flashcards
1
Q
Skeletal
A
Striated
Multiple peripheral nuclei
Voluntary and involuntary control
2
Q
Smooth
A
Centrally located nuclei
Non-striated
Involuntary control
3
Q
Cardiac
A
Striated Central nucleus Parkinje Fibers Intercalated Disks Involuntary control
4
Q
Parkinje fibers
A
Conduct impulses
5
Q
Intercalated Disks
A
Membrane separating adjacent cells
Support contraction
6
Q
Thick Filament
A
Composed of hundreds of long, contractable MYOSIN molecules
Side by side
7
Q
Thin Filaments
A
Linear array of hundreds of globular ACTIN monomers arranged as a double helix
8
Q
Sarcomere
A
Unit of contractile activity composed of myosin and actin
9
Q
Myofibril
A
End to end array of identical sarcomeres
10
Q
Myofiber
A
Single multinucleate muscle cell containing all usual organelle and many myofibrils
11
Q
Muscle
A
Organized array of muscle fibers
