movement and anatomy of the muscular system Flashcards
1
Q
how many attachment sights do skeletal muscles have and what are they called?
A
-two
-origin and insertion
2
Q
what is the origin?
A
-attachment to an immovable or less moveable bone
3
Q
what is the insertion?
A
-attachment to a moveable bone
4
Q
flexion
A
-decreases the angle of the joint, brings two bones closer together
5
Q
extension
A
-increases the angle between two bones
6
Q
rotation
A
-movement of a bone around its longitudinal axis
7
Q
prime mover
A
muscle with the majority responsibility for a certain movement
8
Q
antagonist
A
muscle that opposes or reverses a prime mover
9
Q
synergist
A
muscle that aids a prime mover in a movement or reduces undesireable movements
