ANATOMY + EMBRYOLOGY OF MUSCLES Flashcards
1
Q
Syncitial Cell
A
Muscle cells that have many nuclei and share a cytoplasm
2
Q
Prime Mover Muscle
A
Causes isotonic-concentric contraction
3
Q
Antagonist Muscle
A
Opposes action of prime mover muscle
4
Q
Fixator Muscle
A
Steadies/holds position through isometric contraction
5
Q
Synergist Muscle
A
Complements action of prime mover, either by the same movement OR by acting as a fixator
6
Q
Motor Unit
A
The set of muscle fibres innervated by a single motor neurone from the CNS
7
Q
Muscle Patterning
A
The process by which individual muscle fibres are organised into discrete units of different shapes and sizes
8
Q
Myofibre
A
Another term for muscle fibre
9
Q
Myotube
A
Immature muscle cell (centrally located nuclei)
10
Q
Myonuclei
A
Nuclei in muscle cells
