For each of the anatomical levers listed, identify the class of lever represente

Question

For each of the anatomical levers listed, identify
the class of lever represented; identify the
fulcrum, effort point, and resistance point; and
name the kind of movement favored by this type
of lever.
a. Leg being flexed at knee by hamstrings
b. Leg being extended at knee by quadriceps
femoris
c. Pelvis being tilted to right by left quadriceps
lumborum
d. Clavicle being elevated by trapezius I
e. Lower extremity being abducted by gluteus
medius
f. From supine lying position, lower extremities
being raised by hip flexors
g. From supine lying position, trunk being raised
by hip flexors

Explanation / Answer

Fulcrum = the pivot point of the lever
Resistance = The load being moved
Effort = The added force by the lever's user

If it's class 1, F, fulcrum is in the middle
If it's class 2, R, resistance is in the middle
If it's class 3, E, effort is in the middle

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