Muscles Flashcards
1
Q
How are the muscles named
A
Fibre direction Location Size Origin/insertion Shape Action
2
Q
What is origin and what is insertion
A
Origin: proximal. Less moveable
Insertion: distal. More moveable
3
Q
How do muscles work in groups
A
Agonist- initiates movement
Antagonist- resists/works against movement
Synergist- works with agonist
4
Q
Example of Synergist group
A
Brachialis Synergist to biceps during elbow flexion
5
Q
Antagonist example
A
Flexor and extensor carpi radialis during wrist flexion and extension
6
Q
Muscle fibre direction
A
- fasiform
- multi-pennate
- bi-pennate
- uni-pennate
- parallel
- circular
- convergent
7
Q
What is the difference between multipennate, bipennate, and unipennate?
A
Multipennate- multiple sides of muscle attachment
Bipennate- muscle attachment on 2 sides
Unipennate- muscle attachment on one side
