7.6 Flashcards
1
Q
Muscles are enclosed by this
A
Facia
2
Q
Muscles are composed of these
A
Muscle fibers
3
Q
The contraction machinery is found inside long cylinders called this
A
Myofibrils
4
Q
Myofibrils are composed by this
A
Sarcomeres
5
Q
Motor neurons and the cells they control are this
A
Motor unit
6
Q
This is when muscle fiber is stimulated to contract it does so completely and then relaxes completely until another nerve impulse reaches it
A
All or none principle
