Technical Tuesday Trochlea
A trochlea is an anatomical structure that acts like a
pulley. It can be bony or fibrous and has a grooved structure that allows
tendons or other structures to glide – like the grooved wheel on an actual
pulley.
There is a trochlea in the eye, in the leg, in the foot, and
in the arm. It gets around (no pun intended).
Here is a short list of some
trochleas:
Trochlea of humerus (part of the elbow
hinge joint with the ulna)
Trochlea of femur (forming
the knee hinge joint with the patella)
The trochlea tali in the superior
surface of the body of talus (part of the ankle hinge joint
with the tibia)
In quadrupeds, the trochlea of Radius
(bone)
Probably the most interesting trochleas for dancers are in
the knee and the foot. If you google “trochlea” you will find lots of photos
and descriptions, including various common injuries.
From the Big Blue Book of Ballet Secrets
Secret #:
“A trochlea is an anatomical structure that acts like a
pulley.”
Link of the Day:
Quote of the Day:
“Learn to dance in
the storm so when life hands you a stormy weather, you just glide through it”
― Ikechukwu Izuakor
― Ikechukwu Izuakor
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