lever system Flashcards
1
Q
fulcrum F
A
joint
2
Q
pull P
A
force of muscle contracting
3
Q
Class 1 lever system
A
F (joint) between Pull (muscle) and weight
see saw
4
Q
class 1 example
A
altonocciptal joint
head looking at the sky
5
Q
class 1 characteristic
A
limited in amount of weight it can pull
6
Q
class 2
A
WEIGHT between F (joint) and P (muscle)
wheel barrow
7
Q
class 2 example
A
depressing mandible
doing pushups
toes F, body W, arms are P
8
Q
Class 3
A
PULL (muscle) between Weight and F (joint)
person using a shovel
9
Q
class 3 example
A
bicepeps brachi (W) pulling on radius to (lever) to flex elbow (F) and raise the hand
10
Q
class 3 characteristics
A
most common in body
does not allow great weight to be lifted but does allow to lift for greater distances
