Chapter 6: Skeletal Muscle Activity Flashcards
1
Q
Excitability, or responsiveness
A
Ability to receive response stimulus.
2
Q
Contractility
A
Ability to shorten
3
Q
Extensibility
A
Ability to be stretched
4
Q
Elasticity
A
Ability to recoil
5
Q
Motor Unit
A
One motor neuron and all the skeletal muscle cells it stimulates.
6
Q
Axon
A
Nerve fiber
7
Q
Axon terminals
A
forms junctions with the sarcolemma of a different muscle cell.
8
Q
Neuromuscular junctions
A
The name of the junctions formed by axon terminals.
9
Q
Neurotransmitters
A
Chemicals that are contained in neuromuscular junction.
10
Q
Acetylcholine
A
ACh, or the neurotransmitter that stimulates the skeletal muscle cells.
11
Q
Synaptic Cleft
A
Gap between nerve endings and muscles cells’ membranes.
