the hand Flashcards
grip: describe the main types of grip (power, precision and hook) and the role of the muscles and nerves involved in executing them
1
Q
3 types of grip
A
power, precision, hook
2
Q
describe power grip
A
fingers flexed around an object, with counter pressure from thumb (e.g. grasping rod)
3
Q
3 muscle groups activated in power grip
A
long flexors of fingers and thumb, intrinsic muscles of palm, extensors of wrist joint (give more power to long flexors)
4
Q
describe precision grip
A
object gripped between tips of fingers and thumb (e.g. unbuttoning shirt)
5
Q
muscle groups activated in precision grip
A
intrinsic muscles of hand carry out fine movement, with wrist and fingers held rigidly by long flexors and extensors
6
Q
describe hook grip
A
consumes little energy e.g. carrying shopping bag
7
Q
muscle group activated in hook grip
A
long flexors of digits
